A virgin Wayland session works fine with Chromium.
edlin@Devil:~$ inxi -G
Graphics:
Device-1: AMD Cezanne [Radeon Vega Series / Radeon Mobile Series]
driver: amdgpu v: kernel
Device-2: Aveo USB2.0 UVC PC Camera driver: uvcvideo type: USB
Display: wayland server: X.Org v: 23.2.2 with: Xwayland v: 23.2.2
compositor: kwin_wayland driver: X: loaded: amdgpu
unloaded: fbdev,modesetting,vesa dri: radeonsi gpu: amdgpu
resolution: 1920x1200~60Hz
API: EGL v: 1.5 drivers: kms_swrast,radeonsi,swrast
platforms: gbm,wayland,x11,surfaceless,device
API: OpenGL v: 4.6 vendor: amd mesa v: 23.2.1-1 renderer: AMD Radeon
Graphics (renoir LLVM 16.0.6 DRM 3.54 6.5.11-1-siduction-amd64)
Perhaps it is the legacy files (cache, config) that are causing problems. The problem should then disappear with a new user created as a test.
edlin