src/vs/workbench/contrib/extensions/browser/extensionsViewlet.ts/ExtensionsViewPaneContainer/updateInstalledExtensionsContexts
class ExtensionsViewPaneContainer:	private async updateInstalledExtensionsContexts(): Promise<void> {
		const result = await this.extensionsWorkbenchService.queryLocal();
		this.hasInstalledExtensionsContextKey.set(result.some(r => !r.isBuiltin));
		this.updateInstalledWebExtensionsContext();
	}