diff --git a/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.md b/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.md
index c61907f3663012..2ebee16874c801 100644
--- a/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.md
+++ b/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.md
@@ -30,7 +30,7 @@ const provider: ConfigDeprecationProvider = ({ rename, unused }) => [
 |  Method | Description |
 |  --- | --- |
 |  [rename(oldKey, newKey)](./kibana-plugin-server.configdeprecationfactory.rename.md) | Rename a configuration property from inside a plugin's configuration path. Will log a deprecation warning if the oldKey was found and deprecation applied. |
-|  [renameFromRoot(oldKey, newKey)](./kibana-plugin-server.configdeprecationfactory.renamefromroot.md) | Rename a configuration property from the root configuration. Will log a deprecation warning if the oldKey was found and deprecation applied.<!-- -->This should be only used when renaming properties from different configuration's path. To rename properties from inside a plugin's configuration, use 'rename' instead. |
+|  [renameFromRoot(oldKey, newKey, silent)](./kibana-plugin-server.configdeprecationfactory.renamefromroot.md) | Rename a configuration property from the root configuration. Will log a deprecation warning if the oldKey was found and deprecation applied.<!-- -->This should be only used when renaming properties from different configuration's path. To rename properties from inside a plugin's configuration, use 'rename' instead. |
 |  [unused(unusedKey)](./kibana-plugin-server.configdeprecationfactory.unused.md) | Remove a configuration property from inside a plugin's configuration path. Will log a deprecation warning if the unused key was found and deprecation applied. |
 |  [unusedFromRoot(unusedKey)](./kibana-plugin-server.configdeprecationfactory.unusedfromroot.md) | Remove a configuration property from the root configuration. Will log a deprecation warning if the unused key was found and deprecation applied.<!-- -->This should be only used when removing properties from outside of a plugin's configuration. To remove properties from inside a plugin's configuration, use 'unused' instead. |
 
diff --git a/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.renamefromroot.md b/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.renamefromroot.md
index 269f242ec35da6..40ea891b17c957 100644
--- a/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.renamefromroot.md
+++ b/docs/development/core/server/kibana-plugin-server.configdeprecationfactory.renamefromroot.md
@@ -11,7 +11,7 @@ This should be only used when renaming properties from different configuration's
 <b>Signature:</b>
 
 ```typescript
-renameFromRoot(oldKey: string, newKey: string): ConfigDeprecation;
+renameFromRoot(oldKey: string, newKey: string, silent?: boolean): ConfigDeprecation;
 ```
 
 ## Parameters
@@ -20,6 +20,7 @@ renameFromRoot(oldKey: string, newKey: string): ConfigDeprecation;
 |  --- | --- | --- |
 |  oldKey | <code>string</code> |  |
 |  newKey | <code>string</code> |  |
+|  silent | <code>boolean</code> |  |
 
 <b>Returns:</b>
 
diff --git a/src/core/server/config/deprecation/deprecation_factory.ts b/src/core/server/config/deprecation/deprecation_factory.ts
index 6f7ed4c4e84cc6..0b19a996243119 100644
--- a/src/core/server/config/deprecation/deprecation_factory.ts
+++ b/src/core/server/config/deprecation/deprecation_factory.ts
@@ -26,7 +26,8 @@ const _rename = (
   rootPath: string,
   log: ConfigDeprecationLogger,
   oldKey: string,
-  newKey: string
+  newKey: string,
+  silent?: boolean
 ) => {
   const fullOldPath = getPath(rootPath, oldKey);
   const oldValue = get(config, fullOldPath);
@@ -40,11 +41,16 @@ const _rename = (
   const newValue = get(config, fullNewPath);
   if (newValue === undefined) {
     set(config, fullNewPath, oldValue);
-    log(`"${fullOldPath}" is deprecated and has been replaced by "${fullNewPath}"`);
+
+    if (!silent) {
+      log(`"${fullOldPath}" is deprecated and has been replaced by "${fullNewPath}"`);
+    }
   } else {
-    log(
-      `"${fullOldPath}" is deprecated and has been replaced by "${fullNewPath}". However both key are present, ignoring "${fullOldPath}"`
-    );
+    if (!silent) {
+      log(
+        `"${fullOldPath}" is deprecated and has been replaced by "${fullNewPath}". However both key are present, ignoring "${fullOldPath}"`
+      );
+    }
   }
   return config;
 };
@@ -67,11 +73,11 @@ const _unused = (
 const rename = (oldKey: string, newKey: string): ConfigDeprecation => (config, rootPath, log) =>
   _rename(config, rootPath, log, oldKey, newKey);
 
-const renameFromRoot = (oldKey: string, newKey: string): ConfigDeprecation => (
+const renameFromRoot = (oldKey: string, newKey: string, silent?: boolean): ConfigDeprecation => (
   config,
   rootPath,
   log
-) => _rename(config, '', log, oldKey, newKey);
+) => _rename(config, '', log, oldKey, newKey, silent);
 
 const unused = (unusedKey: string): ConfigDeprecation => (config, rootPath, log) =>
   _unused(config, rootPath, log, unusedKey);
diff --git a/src/core/server/config/deprecation/types.ts b/src/core/server/config/deprecation/types.ts
index 19fba7800c919d..dbfbad771f0749 100644
--- a/src/core/server/config/deprecation/types.ts
+++ b/src/core/server/config/deprecation/types.ts
@@ -102,7 +102,7 @@ export interface ConfigDeprecationFactory {
    * ]
    * ```
    */
-  renameFromRoot(oldKey: string, newKey: string): ConfigDeprecation;
+  renameFromRoot(oldKey: string, newKey: string, silent?: boolean): ConfigDeprecation;
   /**
    * Remove a configuration property from inside a plugin's configuration path.
    * Will log a deprecation warning if the unused key was found and deprecation applied.
diff --git a/src/core/server/kibana_config.ts b/src/core/server/kibana_config.ts
index d46960289a8d01..17f77a6e9328f3 100644
--- a/src/core/server/kibana_config.ts
+++ b/src/core/server/kibana_config.ts
@@ -25,9 +25,7 @@ export const config = {
   path: 'kibana',
   schema: schema.object({
     enabled: schema.boolean({ defaultValue: true }),
-    defaultAppId: schema.string({ defaultValue: 'home' }),
     index: schema.string({ defaultValue: '.kibana' }),
-    disableWelcomeScreen: schema.boolean({ defaultValue: false }),
     autocompleteTerminateAfter: schema.duration({ defaultValue: 100000 }),
     autocompleteTimeout: schema.duration({ defaultValue: 1000 }),
   }),
diff --git a/src/core/server/mocks.ts b/src/core/server/mocks.ts
index 50ce507520d048..7d6f09b5232c0c 100644
--- a/src/core/server/mocks.ts
+++ b/src/core/server/mocks.ts
@@ -43,7 +43,7 @@ import { uuidServiceMock } from './uuid/uuid_service.mock';
 
 export function pluginInitializerContextConfigMock<T>(config: T) {
   const globalConfig: SharedGlobalConfig = {
-    kibana: { defaultAppId: 'home-mocks', index: '.kibana-tests' },
+    kibana: { index: '.kibana-tests' },
     elasticsearch: {
       shardTimeout: duration('30s'),
       requestTimeout: duration('30s'),
diff --git a/src/core/server/plugins/plugin_context.test.ts b/src/core/server/plugins/plugin_context.test.ts
index 3fcd7fbbbe1ff9..823299771544cd 100644
--- a/src/core/server/plugins/plugin_context.test.ts
+++ b/src/core/server/plugins/plugin_context.test.ts
@@ -75,7 +75,7 @@ describe('Plugin Context', () => {
       .pipe(first())
       .toPromise();
     expect(configObject).toStrictEqual({
-      kibana: { defaultAppId: 'home', index: '.kibana' },
+      kibana: { index: '.kibana' },
       elasticsearch: {
         shardTimeout: duration(30, 's'),
         requestTimeout: duration(30, 's'),
diff --git a/src/core/server/plugins/types.ts b/src/core/server/plugins/types.ts
index a89e2f8c684e40..9ae04787767bb6 100644
--- a/src/core/server/plugins/types.ts
+++ b/src/core/server/plugins/types.ts
@@ -214,7 +214,7 @@ export interface Plugin<
 
 export const SharedGlobalConfigKeys = {
   // We can add more if really needed
-  kibana: ['defaultAppId', 'index'] as const,
+  kibana: ['index'] as const,
   elasticsearch: ['shardTimeout', 'requestTimeout', 'pingTimeout', 'startupTimeout'] as const,
   path: ['data'] as const,
 };
diff --git a/src/core/server/server.api.md b/src/core/server/server.api.md
index e4ea06769007a1..20d9692391a691 100644
--- a/src/core/server/server.api.md
+++ b/src/core/server/server.api.md
@@ -509,7 +509,7 @@ export type ConfigDeprecation = (config: Record<string, any>, fromPath: string,
 // @public
 export interface ConfigDeprecationFactory {
     rename(oldKey: string, newKey: string): ConfigDeprecation;
-    renameFromRoot(oldKey: string, newKey: string): ConfigDeprecation;
+    renameFromRoot(oldKey: string, newKey: string, silent?: boolean): ConfigDeprecation;
     unused(unusedKey: string): ConfigDeprecation;
     unusedFromRoot(unusedKey: string): ConfigDeprecation;
 }
diff --git a/src/legacy/core_plugins/kibana/index.js b/src/legacy/core_plugins/kibana/index.js
index 8e0497732e2305..8c35044b52c9e1 100644
--- a/src/legacy/core_plugins/kibana/index.js
+++ b/src/legacy/core_plugins/kibana/index.js
@@ -42,9 +42,7 @@ export default function(kibana) {
     config: function(Joi) {
       return Joi.object({
         enabled: Joi.boolean().default(true),
-        defaultAppId: Joi.string().default('home'),
         index: Joi.string().default('.kibana'),
-        disableWelcomeScreen: Joi.boolean().default(false),
         autocompleteTerminateAfter: Joi.number()
           .integer()
           .min(1)
diff --git a/src/legacy/core_plugins/kibana/inject_vars.js b/src/legacy/core_plugins/kibana/inject_vars.js
index 4bf11f28732ee1..01623341e4d38b 100644
--- a/src/legacy/core_plugins/kibana/inject_vars.js
+++ b/src/legacy/core_plugins/kibana/inject_vars.js
@@ -28,8 +28,6 @@ export function injectVars(server) {
   );
 
   return {
-    kbnDefaultAppId: serverConfig.get('kibana.defaultAppId'),
-    disableWelcomeScreen: serverConfig.get('kibana.disableWelcomeScreen'),
     importAndExportableTypes,
     autocompleteTerminateAfter: serverConfig.get('kibana.autocompleteTerminateAfter'),
     autocompleteTimeout: serverConfig.get('kibana.autocompleteTimeout'),
diff --git a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/application.ts b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/application.ts
index 0d461028d994a3..f1fd93fd09b3dd 100644
--- a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/application.ts
+++ b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/application.ts
@@ -46,6 +46,7 @@ import { IEmbeddableStart } from '../../../../../../plugins/embeddable/public';
 import { NavigationPublicPluginStart as NavigationStart } from '../../../../../../plugins/navigation/public';
 import { DataPublicPluginStart as NpDataStart } from '../../../../../../plugins/data/public';
 import { SharePluginStart } from '../../../../../../plugins/share/public';
+import { KibanaLegacyStart } from '../../../../../../plugins/kibana_legacy/public';
 
 export interface RenderDeps {
   core: LegacyCoreStart;
@@ -62,6 +63,7 @@ export interface RenderDeps {
   embeddables: IEmbeddableStart;
   localStorage: Storage;
   share: SharePluginStart;
+  config: KibanaLegacyStart['config'];
 }
 
 let angularModuleInstance: IModule | null = null;
diff --git a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app.tsx b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app.tsx
index a48c165116304f..0537e3f8fc456d 100644
--- a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app.tsx
+++ b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app.tsx
@@ -88,7 +88,6 @@ export interface DashboardAppScope extends ng.IScope {
 export function initDashboardAppDirective(app: any, deps: RenderDeps) {
   app.directive('dashboardApp', function($injector: IInjector) {
     const confirmModal = $injector.get<ConfirmModalFn>('confirmModal');
-    const config = deps.uiSettings;
 
     return {
       restrict: 'E',
@@ -106,7 +105,6 @@ export function initDashboardAppDirective(app: any, deps: RenderDeps) {
           $route,
           $scope,
           $routeParams,
-          config,
           confirmModal,
           indexPatterns: deps.npDataStart.indexPatterns,
           kbnUrlStateStorage,
diff --git a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app_controller.tsx b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app_controller.tsx
index a8eec9c2504a7c..624be02ac3b9da 100644
--- a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app_controller.tsx
+++ b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/dashboard_app_controller.tsx
@@ -90,7 +90,6 @@ export interface DashboardAppControllerDependencies extends RenderDeps {
   $routeParams: any;
   indexPatterns: IndexPatternsContract;
   dashboardConfig: any;
-  config: any;
   confirmModal: ConfirmModalFn;
   history: History;
   kbnUrlStateStorage: IKbnUrlStateStorage;
@@ -109,7 +108,6 @@ export class DashboardAppController {
     dashboardConfig,
     localStorage,
     indexPatterns,
-    config,
     confirmModal,
     savedQueryService,
     embeddables,
@@ -376,7 +374,7 @@ export class DashboardAppController {
       dashboardStateManager.getQuery() || {
         query: '',
         language:
-          localStorage.get('kibana.userQueryLanguage') || config.get('search:queryLanguage'),
+          localStorage.get('kibana.userQueryLanguage') || uiSettings.get('search:queryLanguage'),
       },
       queryFilter.getFilters()
     );
@@ -493,7 +491,7 @@ export class DashboardAppController {
         {
           query: '',
           language:
-            localStorage.get('kibana.userQueryLanguage') || config.get('search:queryLanguage'),
+            localStorage.get('kibana.userQueryLanguage') || uiSettings.get('search:queryLanguage'),
         },
         queryFilter.getGlobalFilters()
       );
diff --git a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/legacy_app.js b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/legacy_app.js
index abc0c789326f8a..b0f70b7a0c68f3 100644
--- a/src/legacy/core_plugins/kibana/public/dashboard/np_ready/legacy_app.js
+++ b/src/legacy/core_plugins/kibana/public/dashboard/np_ready/legacy_app.js
@@ -246,10 +246,10 @@ export function initDashboardApp(app, deps) {
         },
       })
       .when(`dashboard/:tail*?`, {
-        redirectTo: `/${deps.core.injectedMetadata.getInjectedVar('kbnDefaultAppId')}`,
+        redirectTo: `/${deps.config.defaultAppId}`,
       })
       .when(`dashboards/:tail*?`, {
-        redirectTo: `/${deps.core.injectedMetadata.getInjectedVar('kbnDefaultAppId')}`,
+        redirectTo: `/${deps.config.defaultAppId}`,
       });
   });
 }
diff --git a/src/legacy/core_plugins/kibana/public/dashboard/plugin.ts b/src/legacy/core_plugins/kibana/public/dashboard/plugin.ts
index ca4b18a37504c6..227bcb53ca0df7 100644
--- a/src/legacy/core_plugins/kibana/public/dashboard/plugin.ts
+++ b/src/legacy/core_plugins/kibana/public/dashboard/plugin.ts
@@ -107,6 +107,7 @@ export class DashboardPlugin implements Plugin {
           chrome: contextCore.chrome,
           addBasePath: contextCore.http.basePath.prepend,
           uiSettings: contextCore.uiSettings,
+          config: kibana_legacy.config,
           savedQueryService: npDataStart.query.savedQueries,
           embeddables,
           dashboardCapabilities: contextCore.application.capabilities.dashboard,
diff --git a/src/legacy/core_plugins/kibana/public/home/kibana_services.ts b/src/legacy/core_plugins/kibana/public/home/kibana_services.ts
index 4d9177735556df..90fb32a88d43cb 100644
--- a/src/legacy/core_plugins/kibana/public/home/kibana_services.ts
+++ b/src/legacy/core_plugins/kibana/public/home/kibana_services.ts
@@ -29,7 +29,12 @@ import {
   UiSettingsState,
 } from 'kibana/public';
 import { UiStatsMetricType } from '@kbn/analytics';
-import { Environment, FeatureCatalogueEntry } from '../../../../../plugins/home/public';
+import {
+  Environment,
+  FeatureCatalogueEntry,
+  HomePublicPluginSetup,
+} from '../../../../../plugins/home/public';
+import { KibanaLegacySetup } from '../../../../../plugins/kibana_legacy/public';
 
 export interface HomeKibanaServices {
   indexPatternService: any;
@@ -51,6 +56,8 @@ export interface HomeKibanaServices {
   chrome: ChromeStart;
   telemetryOptInProvider: any;
   uiSettings: IUiSettingsClient;
+  config: KibanaLegacySetup['config'];
+  homeConfig: HomePublicPluginSetup['config'];
   http: HttpStart;
   savedObjectsClient: SavedObjectsClientContract;
   toastNotifications: NotificationsSetup['toasts'];
diff --git a/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.js b/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.js
index 5c32a463da1153..0c09c6c3c74fcb 100644
--- a/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.js
+++ b/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.js
@@ -48,7 +48,7 @@ export class Home extends Component {
     super(props);
 
     const isWelcomeEnabled = !(
-      getServices().getInjected('disableWelcomeScreen') ||
+      getServices().homeConfig.disableWelcomeScreen ||
       props.localStorage.getItem(KEY_ENABLE_WELCOME) === 'false'
     );
     const currentOptInStatus = this.props.getOptInStatus();
diff --git a/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.test.js b/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.test.js
index 27d4f1a8b1c1fa..d25a1f81dae5a5 100644
--- a/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.test.js
+++ b/src/legacy/core_plugins/kibana/public/home/np_ready/components/home.test.js
@@ -30,6 +30,7 @@ jest.mock('../../kibana_services', () => ({
   getServices: () => ({
     getBasePath: () => 'path',
     getInjected: () => '',
+    homeConfig: { disableWelcomeScreen: false },
   }),
 }));
 
diff --git a/src/legacy/core_plugins/kibana/public/home/np_ready/components/home_app.js b/src/legacy/core_plugins/kibana/public/home/np_ready/components/home_app.js
index e49f00b949da5b..f6c91b412381cd 100644
--- a/src/legacy/core_plugins/kibana/public/home/np_ready/components/home_app.js
+++ b/src/legacy/core_plugins/kibana/public/home/np_ready/components/home_app.js
@@ -30,7 +30,7 @@ import { replaceTemplateStrings } from './tutorial/replace_template_strings';
 import { getServices } from '../../kibana_services';
 export function HomeApp({ directories }) {
   const {
-    getInjected,
+    config,
     savedObjectsClient,
     getBasePath,
     addBasePath,
@@ -41,7 +41,7 @@ export function HomeApp({ directories }) {
   const mlEnabled = environment.ml;
   const apmUiEnabled = environment.apmUi;
 
-  const defaultAppId = getInjected('kbnDefaultAppId', 'discover');
+  const defaultAppId = config.defaultAppId || 'discover';
 
   const renderTutorialDirectory = props => {
     return (
diff --git a/src/legacy/core_plugins/kibana/public/home/plugin.ts b/src/legacy/core_plugins/kibana/public/home/plugin.ts
index 502c8f45646cf0..aec3835dc075d9 100644
--- a/src/legacy/core_plugins/kibana/public/home/plugin.ts
+++ b/src/legacy/core_plugins/kibana/public/home/plugin.ts
@@ -27,6 +27,7 @@ import {
   Environment,
   FeatureCatalogueEntry,
   HomePublicPluginStart,
+  HomePublicPluginSetup,
 } from '../../../../../plugins/home/public';
 
 export interface LegacyAngularInjectedDependencies {
@@ -59,6 +60,7 @@ export interface HomePluginSetupDependencies {
   };
   usageCollection: UsageCollectionSetup;
   kibana_legacy: KibanaLegacySetup;
+  home: HomePublicPluginSetup;
 }
 
 export class HomePlugin implements Plugin {
@@ -69,6 +71,7 @@ export class HomePlugin implements Plugin {
   setup(
     core: CoreSetup,
     {
+      home,
       kibana_legacy,
       usageCollection,
       __LEGACY: { getAngularDependencies, ...legacyServices },
@@ -95,6 +98,8 @@ export class HomePlugin implements Plugin {
           getBasePath: core.http.basePath.get,
           indexPatternService: this.dataStart!.indexPatterns,
           environment: this.environment!,
+          config: kibana_legacy.config,
+          homeConfig: home.config,
           ...angularDependencies,
         });
         const { renderApp } = await import('./np_ready/application');
diff --git a/src/legacy/core_plugins/kibana/public/kibana.js b/src/legacy/core_plugins/kibana/public/kibana.js
index 50f1702a2a6d0e..f2868da947a75d 100644
--- a/src/legacy/core_plugins/kibana/public/kibana.js
+++ b/src/legacy/core_plugins/kibana/public/kibana.js
@@ -20,7 +20,6 @@
 // autoloading
 
 // preloading (for faster webpack builds)
-import chrome from 'ui/chrome';
 import routes from 'ui/routes';
 import { uiModules } from 'ui/modules';
 import { npSetup } from 'ui/new_platform';
@@ -64,8 +63,9 @@ localApplicationService.attachToAngular(routes);
 
 routes.enable();
 
+const { config } = npSetup.plugins.kibana_legacy;
 routes.otherwise({
-  redirectTo: `/${chrome.getInjected('kbnDefaultAppId', 'discover')}`,
+  redirectTo: `/${config.defaultAppId || 'discover'}`,
 });
 
 uiModules.get('kibana').run(showAppRedirectNotification);
diff --git a/src/legacy/core_plugins/kibana/public/visualize/kibana_services.ts b/src/legacy/core_plugins/kibana/public/visualize/kibana_services.ts
index f7fd19e8288e73..15e9c73a39effe 100644
--- a/src/legacy/core_plugins/kibana/public/visualize/kibana_services.ts
+++ b/src/legacy/core_plugins/kibana/public/visualize/kibana_services.ts
@@ -34,6 +34,7 @@ import { VisualizationsStart } from '../../../visualizations/public';
 import { SavedVisualizations } from './np_ready/types';
 import { UsageCollectionSetup } from '../../../../../plugins/usage_collection/public';
 import { Chrome } from './legacy_imports';
+import { KibanaLegacyStart } from '../../../../../plugins/kibana_legacy/public';
 
 export interface VisualizeKibanaServices {
   addBasePath: (url: string) => string;
@@ -52,6 +53,7 @@ export interface VisualizeKibanaServices {
   savedVisualizations: SavedVisualizations;
   share: SharePluginStart;
   uiSettings: IUiSettingsClient;
+  config: KibanaLegacyStart['config'];
   visualizeCapabilities: any;
   visualizations: VisualizationsStart;
   usageCollection?: UsageCollectionSetup;
diff --git a/src/legacy/core_plugins/kibana/public/visualize/np_ready/legacy_app.js b/src/legacy/core_plugins/kibana/public/visualize/np_ready/legacy_app.js
index d99771ccc912dd..24055b9a2d9ed9 100644
--- a/src/legacy/core_plugins/kibana/public/visualize/np_ready/legacy_app.js
+++ b/src/legacy/core_plugins/kibana/public/visualize/np_ready/legacy_app.js
@@ -173,7 +173,7 @@ export function initVisualizeApp(app, deps) {
         },
       })
       .when(`visualize/:tail*?`, {
-        redirectTo: `/${deps.core.injectedMetadata.getInjectedVar('kbnDefaultAppId')}`,
+        redirectTo: `/${deps.config.defaultAppId}`,
       });
   });
 }
diff --git a/src/legacy/core_plugins/kibana/public/visualize/plugin.ts b/src/legacy/core_plugins/kibana/public/visualize/plugin.ts
index 26c6691a3613f1..8e7487fee55f69 100644
--- a/src/legacy/core_plugins/kibana/public/visualize/plugin.ts
+++ b/src/legacy/core_plugins/kibana/public/visualize/plugin.ts
@@ -108,6 +108,7 @@ export class VisualizePlugin implements Plugin {
           share,
           toastNotifications: contextCore.notifications.toasts,
           uiSettings: contextCore.uiSettings,
+          config: kibana_legacy.config,
           visualizeCapabilities: contextCore.application.capabilities.visualize,
           visualizations,
           usageCollection,
diff --git a/src/legacy/ui/public/new_platform/__mocks__/helpers.ts b/src/legacy/ui/public/new_platform/__mocks__/helpers.ts
index c89ae9f8b3c9b1..439ac9b5713dfa 100644
--- a/src/legacy/ui/public/new_platform/__mocks__/helpers.ts
+++ b/src/legacy/ui/public/new_platform/__mocks__/helpers.ts
@@ -27,6 +27,7 @@ import { inspectorPluginMock } from '../../../../../plugins/inspector/public/moc
 import { uiActionsPluginMock } from '../../../../../plugins/ui_actions/public/mocks';
 import { managementPluginMock } from '../../../../../plugins/management/public/mocks';
 import { usageCollectionPluginMock } from '../../../../../plugins/usage_collection/public/mocks';
+import { kibanaLegacyPluginMock } from '../../../../../plugins/kibana_legacy/public/mocks';
 import { chartPluginMock } from '../../../../../plugins/charts/public/mocks';
 /* eslint-enable @kbn/eslint/no-restricted-paths */
 
@@ -40,6 +41,7 @@ export const pluginsMock = {
     expressions: expressionsPluginMock.createSetupContract(),
     uiActions: uiActionsPluginMock.createSetupContract(),
     usageCollection: usageCollectionPluginMock.createSetupContract(),
+    kibana_legacy: kibanaLegacyPluginMock.createSetupContract(),
   }),
   createStart: () => ({
     data: dataPluginMock.createStartContract(),
@@ -50,6 +52,7 @@ export const pluginsMock = {
     expressions: expressionsPluginMock.createStartContract(),
     uiActions: uiActionsPluginMock.createStartContract(),
     management: managementPluginMock.createStartContract(),
+    kibana_legacy: kibanaLegacyPluginMock.createStartContract(),
   }),
 };
 
diff --git a/src/legacy/ui/public/new_platform/new_platform.karma_mock.js b/src/legacy/ui/public/new_platform/new_platform.karma_mock.js
index f98b8801d52663..c2c8b5a0fae7a7 100644
--- a/src/legacy/ui/public/new_platform/new_platform.karma_mock.js
+++ b/src/legacy/ui/public/new_platform/new_platform.karma_mock.js
@@ -119,6 +119,9 @@ export const npSetup = {
     kibana_legacy: {
       registerLegacyApp: () => {},
       forwardApp: () => {},
+      config: {
+        defaultAppId: 'home',
+      },
     },
     inspector: {
       registerView: () => undefined,
@@ -140,6 +143,9 @@ export const npSetup = {
       environment: {
         update: sinon.fake(),
       },
+      config: {
+        disableWelcomeScreen: false,
+      },
     },
     charts: {
       theme: {
@@ -196,6 +202,9 @@ export const npStart = {
     kibana_legacy: {
       getApps: () => [],
       getForwards: () => [],
+      config: {
+        defaultAppId: 'home',
+      },
     },
     data: {
       autocomplete: {
@@ -297,6 +306,9 @@ export const npStart = {
       environment: {
         get: sinon.fake(),
       },
+      config: {
+        disableWelcomeScreen: false,
+      },
     },
     navigation: {
       ui: {
diff --git a/src/plugins/home/config.ts b/src/plugins/home/config.ts
new file mode 100644
index 00000000000000..149723a7ee5ae2
--- /dev/null
+++ b/src/plugins/home/config.ts
@@ -0,0 +1,26 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { schema, TypeOf } from '@kbn/config-schema';
+
+export const configSchema = schema.object({
+  disableWelcomeScreen: schema.boolean({ defaultValue: false }),
+});
+
+export type ConfigSchema = TypeOf<typeof configSchema>;
diff --git a/src/plugins/home/public/index.ts b/src/plugins/home/public/index.ts
index ca05c8b5f760e7..114d442b40943b 100644
--- a/src/plugins/home/public/index.ts
+++ b/src/plugins/home/public/index.ts
@@ -17,6 +17,8 @@
  * under the License.
  */
 
+import { PluginInitializerContext } from 'kibana/public';
+
 export {
   FeatureCatalogueSetup,
   FeatureCatalogueStart,
@@ -26,4 +28,5 @@ export {
 export { FeatureCatalogueEntry, FeatureCatalogueCategory, Environment } from './services';
 import { HomePublicPlugin } from './plugin';
 
-export const plugin = () => new HomePublicPlugin();
+export const plugin = (initializerContext: PluginInitializerContext) =>
+  new HomePublicPlugin(initializerContext);
diff --git a/src/plugins/home/public/plugin.test.ts b/src/plugins/home/public/plugin.test.ts
index 34502d7d2c6cd8..fa44a110c63b70 100644
--- a/src/plugins/home/public/plugin.test.ts
+++ b/src/plugins/home/public/plugin.test.ts
@@ -19,6 +19,9 @@
 
 import { registryMock, environmentMock } from './plugin.test.mocks';
 import { HomePublicPlugin } from './plugin';
+import { coreMock } from '../../../core/public/mocks';
+
+const mockInitializerContext = coreMock.createPluginInitializerContext();
 
 describe('HomePublicPlugin', () => {
   beforeEach(() => {
@@ -30,13 +33,13 @@ describe('HomePublicPlugin', () => {
 
   describe('setup', () => {
     test('wires up and returns registry', async () => {
-      const setup = await new HomePublicPlugin().setup();
+      const setup = await new HomePublicPlugin(mockInitializerContext).setup();
       expect(setup).toHaveProperty('featureCatalogue');
       expect(setup.featureCatalogue).toHaveProperty('register');
     });
 
     test('wires up and returns environment service', async () => {
-      const setup = await new HomePublicPlugin().setup();
+      const setup = await new HomePublicPlugin(mockInitializerContext).setup();
       expect(setup).toHaveProperty('environment');
       expect(setup.environment).toHaveProperty('update');
     });
@@ -44,7 +47,7 @@ describe('HomePublicPlugin', () => {
 
   describe('start', () => {
     test('wires up and returns registry', async () => {
-      const service = new HomePublicPlugin();
+      const service = new HomePublicPlugin(mockInitializerContext);
       await service.setup();
       const core = { application: { capabilities: { catalogue: {} } } } as any;
       const start = await service.start(core);
@@ -55,7 +58,7 @@ describe('HomePublicPlugin', () => {
     });
 
     test('wires up and returns environment service', async () => {
-      const service = new HomePublicPlugin();
+      const service = new HomePublicPlugin(mockInitializerContext);
       await service.setup();
       const start = await service.start({
         application: { capabilities: { catalogue: {} } },
diff --git a/src/plugins/home/public/plugin.ts b/src/plugins/home/public/plugin.ts
index 39a7f23826900b..fe68dbc3e7e490 100644
--- a/src/plugins/home/public/plugin.ts
+++ b/src/plugins/home/public/plugin.ts
@@ -17,7 +17,8 @@
  * under the License.
  */
 
-import { CoreStart, Plugin } from 'src/core/public';
+import { CoreStart, Plugin, PluginInitializerContext } from 'kibana/public';
+
 import {
   EnvironmentService,
   EnvironmentServiceSetup,
@@ -26,19 +27,23 @@ import {
   FeatureCatalogueRegistrySetup,
   FeatureCatalogueRegistryStart,
 } from './services';
+import { ConfigSchema } from '../config';
 
 export class HomePublicPlugin implements Plugin<HomePublicPluginSetup, HomePublicPluginStart> {
   private readonly featuresCatalogueRegistry = new FeatureCatalogueRegistry();
   private readonly environmentService = new EnvironmentService();
 
-  public async setup() {
+  constructor(private readonly initializerContext: PluginInitializerContext<ConfigSchema>) {}
+
+  public setup(): HomePublicPluginSetup {
     return {
       featureCatalogue: { ...this.featuresCatalogueRegistry.setup() },
       environment: { ...this.environmentService.setup() },
+      config: this.initializerContext.config.get(),
     };
   }
 
-  public async start(core: CoreStart) {
+  public start(core: CoreStart): HomePublicPluginStart {
     return {
       featureCatalogue: {
         ...this.featuresCatalogueRegistry.start({
@@ -71,6 +76,7 @@ export interface HomePublicPluginSetup {
    * @deprecated
    */
   environment: EnvironmentSetup;
+  config: ConfigSchema;
 }
 
 /** @public */
diff --git a/src/plugins/home/server/index.ts b/src/plugins/home/server/index.ts
index 0961c729698b9d..02f4c91a414cc9 100644
--- a/src/plugins/home/server/index.ts
+++ b/src/plugins/home/server/index.ts
@@ -20,8 +20,19 @@
 export { HomeServerPluginSetup, HomeServerPluginStart } from './plugin';
 export { TutorialProvider } from './services';
 export { SampleDatasetProvider, SampleDataRegistrySetup } from './services';
-import { PluginInitializerContext } from 'src/core/server';
+import { PluginInitializerContext, PluginConfigDescriptor } from 'kibana/server';
 import { HomeServerPlugin } from './plugin';
+import { configSchema, ConfigSchema } from '../config';
+
+export const config: PluginConfigDescriptor<ConfigSchema> = {
+  exposeToBrowser: {
+    disableWelcomeScreen: true,
+  },
+  schema: configSchema,
+  deprecations: ({ renameFromRoot }) => [
+    renameFromRoot('kibana.disableWelcomeScreen', 'home.disableWelcomeScreen'),
+  ],
+};
 
 export const plugin = (initContext: PluginInitializerContext) => new HomeServerPlugin(initContext);
 
diff --git a/src/plugins/home/server/plugin.ts b/src/plugins/home/server/plugin.ts
index 23c236764cddcf..d2f2d7041024e3 100644
--- a/src/plugins/home/server/plugin.ts
+++ b/src/plugins/home/server/plugin.ts
@@ -16,7 +16,7 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-import { CoreSetup, Plugin, PluginInitializerContext } from 'src/core/server';
+import { CoreSetup, Plugin, PluginInitializerContext } from 'kibana/server';
 import {
   TutorialsRegistry,
   TutorialsRegistrySetup,
diff --git a/src/plugins/kibana_legacy/config.ts b/src/plugins/kibana_legacy/config.ts
new file mode 100644
index 00000000000000..291f8813ecfb91
--- /dev/null
+++ b/src/plugins/kibana_legacy/config.ts
@@ -0,0 +1,26 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { schema, TypeOf } from '@kbn/config-schema';
+
+export const configSchema = schema.object({
+  defaultAppId: schema.string({ defaultValue: 'home' }),
+});
+
+export type ConfigSchema = TypeOf<typeof configSchema>;
diff --git a/src/plugins/kibana_legacy/kibana.json b/src/plugins/kibana_legacy/kibana.json
index 26ee6db3ba06ae..b6d11309a4f964 100644
--- a/src/plugins/kibana_legacy/kibana.json
+++ b/src/plugins/kibana_legacy/kibana.json
@@ -1,6 +1,6 @@
 {
   "id": "kibana_legacy",
   "version": "kibana",
-  "server": false,
+  "server": true,
   "ui": true
 }
diff --git a/src/plugins/kibana_legacy/public/index.ts b/src/plugins/kibana_legacy/public/index.ts
index 4cb30be8917acd..de8788808e74c6 100644
--- a/src/plugins/kibana_legacy/public/index.ts
+++ b/src/plugins/kibana_legacy/public/index.ts
@@ -20,8 +20,7 @@
 import { PluginInitializerContext } from 'kibana/public';
 import { KibanaLegacyPlugin } from './plugin';
 
-export function plugin(initializerContext: PluginInitializerContext) {
-  return new KibanaLegacyPlugin();
-}
+export const plugin = (initializerContext: PluginInitializerContext) =>
+  new KibanaLegacyPlugin(initializerContext);
 
 export * from './plugin';
diff --git a/src/plugins/kibana_legacy/public/mocks.ts b/src/plugins/kibana_legacy/public/mocks.ts
new file mode 100644
index 00000000000000..b6287dd9d9a556
--- /dev/null
+++ b/src/plugins/kibana_legacy/public/mocks.ts
@@ -0,0 +1,44 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { KibanaLegacyPlugin } from './plugin';
+
+export type Setup = jest.Mocked<ReturnType<KibanaLegacyPlugin['setup']>>;
+export type Start = jest.Mocked<ReturnType<KibanaLegacyPlugin['start']>>;
+
+const createSetupContract = (): Setup => ({
+  forwardApp: jest.fn(),
+  registerLegacyApp: jest.fn(),
+  config: {
+    defaultAppId: 'home',
+  },
+});
+
+const createStartContract = (): Start => ({
+  getApps: jest.fn(),
+  getForwards: jest.fn(),
+  config: {
+    defaultAppId: 'home',
+  },
+});
+
+export const kibanaLegacyPluginMock = {
+  createSetupContract,
+  createStartContract,
+};
diff --git a/src/plugins/kibana_legacy/public/plugin.ts b/src/plugins/kibana_legacy/public/plugin.ts
index cb95088320d7b3..b9a61a1c9b2000 100644
--- a/src/plugins/kibana_legacy/public/plugin.ts
+++ b/src/plugins/kibana_legacy/public/plugin.ts
@@ -17,7 +17,9 @@
  * under the License.
  */
 
-import { App } from 'kibana/public';
+import { App, PluginInitializerContext } from 'kibana/public';
+
+import { ConfigSchema } from '../config';
 
 interface ForwardDefinition {
   legacyAppId: string;
@@ -29,6 +31,8 @@ export class KibanaLegacyPlugin {
   private apps: App[] = [];
   private forwards: ForwardDefinition[] = [];
 
+  constructor(private readonly initializerContext: PluginInitializerContext<ConfigSchema>) {}
+
   public setup() {
     return {
       /**
@@ -77,6 +81,8 @@ export class KibanaLegacyPlugin {
       ) => {
         this.forwards.push({ legacyAppId, newAppId, ...options });
       },
+
+      config: this.initializerContext.config.get(),
     };
   }
 
@@ -92,6 +98,7 @@ export class KibanaLegacyPlugin {
        * Just exported for wiring up with legacy platform, should not be used.
        */
       getForwards: () => this.forwards,
+      config: this.initializerContext.config.get(),
     };
   }
 }
diff --git a/src/plugins/kibana_legacy/server/index.ts b/src/plugins/kibana_legacy/server/index.ts
new file mode 100644
index 00000000000000..4d0fe8364a66c5
--- /dev/null
+++ b/src/plugins/kibana_legacy/server/index.ts
@@ -0,0 +1,41 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { CoreSetup, CoreStart, PluginConfigDescriptor } from 'kibana/server';
+
+import { configSchema, ConfigSchema } from '../config';
+
+export const config: PluginConfigDescriptor<ConfigSchema> = {
+  exposeToBrowser: {
+    defaultAppId: true,
+  },
+  schema: configSchema,
+  deprecations: ({ renameFromRoot }) => [
+    // TODO: Remove deprecation once defaultAppId is deleted
+    renameFromRoot('kibana.defaultAppId', 'kibana_legacy.defaultAppId', true),
+  ],
+};
+
+class Plugin {
+  public setup(core: CoreSetup) {}
+
+  public start(core: CoreStart) {}
+}
+
+export const plugin = () => new Plugin();
diff --git a/src/plugins/management/public/management_service.test.ts b/src/plugins/management/public/management_service.test.ts
index 854406a10335be..b34e76474cec23 100644
--- a/src/plugins/management/public/management_service.test.ts
+++ b/src/plugins/management/public/management_service.test.ts
@@ -19,12 +19,13 @@
 
 import { ManagementService } from './management_service';
 import { coreMock } from '../../../core/public/mocks';
+import { npSetup } from '../../../legacy/ui/public/new_platform/__mocks__';
 
-const mockKibanaLegacy = { registerLegacyApp: () => {}, forwardApp: () => {} };
+jest.mock('ui/new_platform');
 
 test('Provides default sections', () => {
   const service = new ManagementService().setup(
-    mockKibanaLegacy,
+    npSetup.plugins.kibana_legacy,
     () => {},
     coreMock.createSetup().getStartServices
   );
@@ -36,7 +37,7 @@ test('Provides default sections', () => {
 
 test('Register section, enable and disable', () => {
   const service = new ManagementService().setup(
-    mockKibanaLegacy,
+    npSetup.plugins.kibana_legacy,
     () => {},
     coreMock.createSetup().getStartServices
   );
diff --git a/test/common/config.js b/test/common/config.js
index 29d4bbf10a6cee..faf8cef0271709 100644
--- a/test/common/config.js
+++ b/test/common/config.js
@@ -54,7 +54,7 @@ export default function() {
         `--elasticsearch.hosts=${formatUrl(servers.elasticsearch)}`,
         `--elasticsearch.username=${kibanaServerTestUser.username}`,
         `--elasticsearch.password=${kibanaServerTestUser.password}`,
-        `--kibana.disableWelcomeScreen=true`,
+        `--home.disableWelcomeScreen=true`,
         '--telemetry.banner=false',
         `--server.maxPayloadBytes=1679958`,
         // newsfeed mock service
diff --git a/x-pack/legacy/plugins/dashboard_mode/public/dashboard_viewer.js b/x-pack/legacy/plugins/dashboard_mode/public/dashboard_viewer.js
index ebae49f9947239..4215f96c8de4a4 100644
--- a/x-pack/legacy/plugins/dashboard_mode/public/dashboard_viewer.js
+++ b/x-pack/legacy/plugins/dashboard_mode/public/dashboard_viewer.js
@@ -55,10 +55,12 @@ chrome.setRootController('kibana', function() {
 
 uiModules.get('kibana').run(showAppRedirectNotification);
 
-// If there is a configured kbnDefaultAppId, and it is a dashboard ID, we'll
-// show that dashboard, otherwise, we'll show the default dasbhoard landing page.
+/**
+ * If there is a configured `kibana.defaultAppId`, and it is a dashboard ID, we'll
+ * show that dashboard, otherwise, we'll show the default dasbhoard landing page.
+ */
 function defaultUrl() {
-  const defaultAppId = chrome.getInjected('kbnDefaultAppId', '');
+  const defaultAppId = npStart.plugins.kibana_legacy.config.defaultAppId || '';
   const isDashboardId = defaultAppId.startsWith(dashboardAppIdPrefix());
   return isDashboardId ? `/${defaultAppId}` : DashboardConstants.LANDING_PAGE_PATH;
 }