[Bug] Popup with disabled IsLightDismissEnabled works as Topmost

[maxkatz6]

Actual result:

When window is minimized, popup with StaysOpen enabled (or IsLightDismissEnabled = false in preview) keeps opened on top of another applications.
In other words, it works just like Topmost = true on Windows.

Expected result:

Popup is hidden with minimized window.
When window is opened back from minimized state, popup should be visible back (as it should with StaysOpen=true).
If window loses focus, popup shouldn't be on top of another windows (when Topmost=false, as it is by default).

Gif

Repro

AvaloniaApplication3.zip

[maxkatz6]

Workarounds:

1. Set StaysOpen to false (if it's fine for application logic).
2. Set OverlayPopups = true in Win32PlatformOptions:

public static AppBuilder BuildAvaloniaApp()
    => AppBuilder.Configure<App>()
        .UsePlatformDetect()
        .With(new Win32PlatformOptions { OverlayPopups = true })
        .With(new AvaloniaNativePlatformOptions() { OverlayPopups = true }) ;

[maxkatz6]

Hm, found same issue - #4227
And similar another - #4225

[maxkatz6]

Apparently, the same bug can be reproduced on MacOS.
Workround similar:

.With(new AvaloniaNativePlatformOptions() { OverlayPopups = true })

[GStefanowich]

Came across this issue and adding to this

AppBuilder.Configure<App>()
    .UsePlatformDetect()
    // Windows
    .With(new Win32PlatformOptions { OverlayPopups = true })
    // Unix/Linux
    .With(new X11PlatformOptions { OverlayPopups = true })
    // Mac?
    .With(new AvaloniaNativePlatformOptions { OverlayPopups = true })

Adding X11PlatformOptions fixed this issue for me on Ubuntu