QT6 designer.exe won't launch (on Windows-10)

[DarkSky]

C:\Programs\Python311\Lib\site-packages\qt6_applications\Qt\bin contains designer.exe, but opening it does nothing - no complaints, no error messages, ... no feedback whatsoever. What can I try?

[DarkSky]

@DarkSky FYI, I also tried BASH$ pyqt6-tools designer and BASH$ pyside6-designer in VS-code. Same (does nothing) action.

[DarkSky]

@DarkSky And... I installed PySide6 on WSL2, but it doesn't run there either, missing libxkbcommon.so.0, which BTW https://www.x.org/releases/individual/lib/ does not have listed.