### 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.cc
if (parent_window_.IsEmpty())
    return;
  gin::Handle<BaseWindow> parent;
  if (!gin::ConvertFromV8(isolate(), GetParentWindow(), &parent) ||
      parent.IsEmpty()) {
    return;
  }
  parent->child_windows_.Remove(weak_map_id());
}
gin_helper::WrappableBase* BaseWindow::New(gin_helper::Arguments* args) {
  gin_helper::Dictionary options =
      gin::Dictionary::CreateEmpty(args->isolate());
  args->GetNext(&options);
  return new BaseWindow(args, options);
}
void BaseWindow::BuildPrototype(v8::Isolate* isolate,
                                v8::Local<v8::FunctionTemplate> prototype) {
  prototype->SetClassName(gin::StringToV8(isolate, "BaseWindow"));
  gin_helper::Destroyable::MakeDestroyable(isolate, prototype);
  gin_helper::ObjectTemplateBuilder(isolate, prototype->PrototypeTemplate())
      .SetMethod("setContentView", &BaseWindow::SetContentView)
      .SetMethod("close", &BaseWindow::Close)
      .SetMethod("focus", &BaseWindow::Focus)
      .SetMethod("blur", &BaseWindow::Blur)
      .SetMethod("isFocused", &BaseWindow::IsFocused)
      .SetMethod("show", &BaseWindow::Show)