src/vs/platform/native/electron-main/nativeHostMainService.ts/NativeHostMainService/isMaximized
class NativeHostMainService:	async isMaximized(windowId: number | undefined): Promise<boolean> {
		const window = this.windowById(windowId);
		if (window?.win) {
			return window.win.isMaximized();
		}

		return false;
	}