The modal dialog flashes on macOS when clicking on the parent window

[baochenw]

Describe the bug

The modal dialog flashes on macOS when clicking the parent window.

Screen.Recording.2024-04-28.at.16.14.49.mov

To Reproduce

1. Show modal with ShowDialog method.

var dialog = new Window();
dialog.ShowDialog(MainWindow);

2. Click on the main window

Expected behavior

The dialog is modal and no flashes when clicking parent window.

Avalonia version

11.0.9

OS

macOS

Additional context

I've delved deeper into the issue, and it appears that on macOS, Apple's API isn't used to implement the modal dialog. Instead, a trick is used to reactivate the dialog.
https://github.com/AvaloniaUI/Avalonia/blob/master/src/Avalonia.Controls/Window.cs#L905-L926

Is it possible to use system API to show modal dialog?

[rabbitism]

Is this specific to Ursa or all cases?

[baochenw]

It is also reproducible with Avalonia sample app.

Screen.Recording.2024-05-08.at.18.55.08.mov