src/vs/workbench/contrib/extensions/browser/extensionsActions.ts/InstallAndSyncAction/update
class InstallAndSyncAction:	override update(): void {
		super.update();
		if (this.enabled) {
			this.enabled = this.userDataAutoSyncEnablementService.isEnabled() && this.userDataSyncResourceEnablementService.isResourceEnabled(SyncResource.Extensions);
		}
	}