Hello
So a few things you should try:
- Use a different displaymanager like ly or so and see if that works.
- Create a new user and try logging in the first time with wayland: NixOS + Wayland + Plasma + Nvidia causes black screen on login with only mouse visible
- Have you set QT_STYLE_OVERRIDE to gtk or something in you config: Reddit - Dive into anything
- can you post the output of
cat ~/.local/share/sddm/wayland-session.log