Touch input not being received by instantiated Windows

[Swarkin]

Godot version

4.1.dev built from 76860

System information

Steam Deck (Arch Linux)

Issue description

Windows do not receive any touch input and instead the main project window (if directly behind the pop-up window) receives input.
Disabling Emulate Mouse from Touch makes all Touch input not be registered in neither the popup or the main window.

Steps to reproduce

1. Create and instance a Window.
2. Try to tap on the newly created window, and see Touch events being received by the main window instead.

Minimal reproduction project

N/A (see steps to reproduce)

[Riteo]

IIRC the Steam Deck runs a Wayland compositor, so it may be related to XWayland somehow. Could you check by running echo $XDG_SESSION_TYPE in a shell and telling me the result?

[Swarkin]

@Riteo It prints out x11

[Riteo]

@Swarkin oh all right, nevermind then. It looks like the steam deck indeed uses wayland, but only for direct steam games, using X11 for the desktop mode as you're reporting.

Sorry for the bump; I was looking for unreported XWayland bugs due to the confusion that distros caused by switching to it silently.

[Swarkin]

Similar behavior on Windows 11 where instantiated windows kind of work but it's impossible to click on anything inside them or even close it from the window decorations. Worth noting is that they do receive some kind of input as im able to select things, but not click on buttons for example.

[Swarkin]

also confirming on 4.2.beta1

[Swarkin]

Still an issue in 4.3.dev3.