Change:
return localize('install', "Install"); } <del> protected getInstallOptions(): InstallOptions { return this.options; } } export class InstallAction extends AbstractInstallAction { constructor( options: InstallOptions, @IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService, @IInstantiationService instantiationService: IInstantiationService, @IExtensionService runtimeExtensionService: IExtensionService, @IWorkbenchThemeService workbenchThemeService: IWorkbenchThemeService, @ILabelService labelService: ILabelService, @IDialogService dialogService: IDialogService, @IPreferencesService preferencesService: IPreferencesService, @IExtensionManagementServerService private readonly extensionManagementServerService: IExtensionManagementServerService, @IWorkbenchExtensionManagementService private readonly workbenchExtensionManagementService: IWorkbenchExtensionManagementService, @IUserDataSyncEnablementService protected readonly userDataSyncEnablementService: IUserDataSyncEnablementService, @ITelemetryService telemetryService: ITelemetryService, ) { super(`extensions.install`, options, InstallAction.Class, extensionsWorkbenchService, instantiationService, runtimeExtensionService, workbenchThemeService, labelService, dialogService, preferencesService, telemetryService); this.updateLabel(); this._register(labelService.onDidChangeFormatters(() => this.updateLabel(), this)); this._register(Event.any(userDataSyncEnablementService.onDidChangeEnablement, Event.filter(userDataSyncEnablementService.onDidChangeResourceEnablement, e => e[0] === SyncResource.Extensions))(() => this.update())); } override getLabel(primary?: boolean): string { const baseLabel = super.getLabel(primary); const donotSyncLabel = localize('do no sync', "Do not sync"); const isMachineScoped = this.getInstallOptions().isMachineScoped; // When remote connection exists if (this._manifest && this.extensionManagementServerService.remoteExtensionManagementServer) { const server = this.workbenchExtensionManagementService.getExtensionManagementServerToInstall(this._manifest); if (server === this.extensionManagementServerService.remoteExtensionManagementServer) { const host = this.extensionManagementServerService.remoteExtensionManagementServer.label; return isMachineScoped ? localize({ key: 'install extension in remote and do not sync', comment: [ 'First placeholder is install action label.', 'Second placeholder is the name of the action to install an extension in remote server and do not sync it. Placeholder is for the name of remote server.', 'Third placeholder is do not sync label.', ] }, "{0} in {1} ({2})", baseLabel, host, donotSyncLabel) : localize({ key: 'install extension in remote', comment: [ 'First placeholder is install action label.', 'Second placeholder is the name of the action to install an extension in remote server and do not sync it. Placeholder is for the name of remote server.', ] }, "{0} in {1}", baseLabel, host); } return isMachineScoped ? localize('install extension locally and do not sync', "{0} Locally ({1})", baseLabel, donotSyncLabel) : localize('install extension locally', "{0} Locally", baseLabel); } return isMachineScoped ? `${baseLabel} (${donotSyncLabel})` : baseLabel; } protected override getInstallOptions(): InstallOptions { return { ...super.getInstallOptions(), isMachineScoped: this.userDataSyncEnablementService.isEnabled() && this.userDataSyncEnablementService.isResourceEnabled(SyncResource.Extensions) }; } } export class InstallAndSyncAction extends AbstractInstallAction { constructor( options: InstallOptions, @IExtensionsWorkbenchService extensionsWorkbenchService: IExtensionsWorkbenchService, @IInstantiationService instantiationService: IInstantiationService, @IExtensionService runtimeExtensionService: IExtensionService, @IWorkbenchThemeService workbenchThemeService: IWorkbenchThemeService, @ILabelService labelService: ILabelService, @IDialogService dialogService: IDialogService, @IPreferencesService preferencesService: IPreferencesService, @IProductService productService: IProductService, @IUserDataSyncEnablementService private readonly userDataSyncEnablementService: IUserDataSyncEnablementService, @ITelemetryService telemetryService: ITelemetryService, ) { super('extensions.installAndSync', options, AbstractInstallAction.Class, extensionsWorkbenchService, instantiationService, runtimeExtensionService, workbenchThemeService, labelService, dialogService, preferencesService, telemetryService); this.tooltip = localize({ key: 'install everywhere tooltip', comment: ['Placeholder is the name of the product. Eg: Visual Studio Code or Visual Studio Code - Insiders'] }, "Install this extension in all your synced {0} instances", productService.nameLong); this._register(Event.any(userDataSyncEnablementService.onDidChangeEnablement, Event.filter(userDataSyncEnablementService.onDidChangeResourceEnablement, e => e[0] === SyncResource.Extensions))(() => this.update())); } protected override async computeAndUpdateEnablement(): Promise<void> { await super.computeAndUpdateEnablement(); if (this.enabled) { this.enabled = this.userDataSyncEnablementService.isEnabled() && this.userDataSyncEnablementService.isResourceEnabled(SyncResource.Extensions); } } protected override getInstallOptions(): InstallOptions { return { ...super.getInstallOptions(), isMachineScoped: false }; } </del> } export class InstallDropdownAction extends ActionWithDropDownAction { set manifest(manifest: IExtensionManifest | null) { <del> this.extensionActions.forEach(a => (<AbstractInstallAction>a).manifest = manifest); </del> <ins> this.extensionActions.forEach(a => (<InstallAction>a).manifest = manifest); </ins> this.update(); }

Discussion:
Look at telemetry and if not a lot of users are using the Install and Do not Sync extension action remove the action to simplify the Extension Install flow. is the action name. fyi
Ok was run on 59K distinct machines. For comparison extensionGallery:install was executed on 10.4M machines. So Do not Sync is used in 0.5% of cases. I think it is fine if we remove it - we keep it somewhere but not so prominent. what do you think?
Any suggestions?
We already have the "Sync Extension" check in the Extension context menu when it is installed - this is great. ! And we already have the "Sync Extension" check in the same context menu when it is not installed. Just currently if I click this, there is no effect. So ideally the experience would be that I can uncheck this before installing the extension. And thus we need no new actions. !
Lets try this in insiders already and see if we get any hit back.
Awesome - thanks!