### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Electron Version

13.1.2

### What operating system are you using?

macOS

### Operating System Version

macOS Big Sur 11.4

### What arch are you using?

x64

### Last Known Working Electron version

11.4.5

### Expected Behavior

  - create the main window with `show: false` option
  - create the child window with a loading spinner and show it immediately
  - after 10 sec hide the child window and show the main one

### Actual Behavior

The main window is shown along with the child window, disregarding the `show: false` flag. This behavior is seen only on macOS.

### Testcase Gist URL

https://gist.github.com/f2a3a5e8d9130223f18b8ddade390f20

### Additional Information

_No response_
shell/browser/api/electron_api_base_window.h
base::PostTask(
        FROM_HERE, {content::BrowserThread::UI},
        base::BindOnce(base::IgnoreResult(&BaseWindow::Emit<Args...>),
                       weak_factory_.GetWeakPtr(), eventName));
  }
#if defined(OS_WIN)
  typedef std::map<UINT, MessageCallback> MessageCallbackMap;
  MessageCallbackMap messages_callback_map_;
#endif
  v8::Global<v8::Value> content_view_;
  std::map<int32_t, v8::Global<v8::Value>> browser_views_;
  v8::Global<v8::Value> menu_;
  v8::Global<v8::Value> parent_window_;
  KeyWeakMap<int> child_windows_;
  std::unique_ptr<NativeWindow> window_;
  
  v8::Global<v8::Value> self_ref_;
  base::WeakPtrFactory<BaseWindow> weak_factory_{this};
};
}  
}  
#endif