src/vs/workbench/services/extensionManagement/common/remoteExtensionManagementService.ts/WebRemoteExtensionManagementService/canInstall
class WebRemoteExtensionManagementService:	override async canInstall(extension: IGalleryExtension): Promise<boolean> {
		const manifest = await this.galleryService.getManifest(extension, CancellationToken.None);
		return !!manifest && this.extensionManifestPropertiesService.canExecuteOnWorkspace(manifest);
	}