### 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
window_->SetSimpleFullScreen(simple_fullscreen);
}
bool BaseWindow::IsSimpleFullScreen() {
  return window_->IsSimpleFullScreen();
}
void BaseWindow::SetKiosk(bool kiosk) {
  window_->SetKiosk(kiosk);
}
bool BaseWindow::IsKiosk() {
  return window_->IsKiosk();
}
bool BaseWindow::IsTabletMode() const {
  return window_->IsTabletMode();
}
void BaseWindow::SetBackgroundColor(const std::string& color_name) {
  SkColor color = ParseHexColor(color_name);
  window_->SetBackgroundColor(color);
}
std::string BaseWindow::GetBackgroundColor() {
  return ToRGBHex(window_->GetBackgroundColor());
}
void BaseWindow::SetHasShadow(bool has_shadow) {
  window_->SetHasShadow(has_shadow);
}
bool BaseWindow::HasShadow() {
  return window_->HasShadow();
}
void BaseWindow::SetOpacity(const double opacity) {