About CinGG in wayland as stated below. I think the error message is from the graphics library (gl_...) and is probably one of the startup screens that has gl commands that may be different now than before. Just a guess!
I tried to start CinGG (ffmpeg7) in wayland. During startup I get this error:
BC_DisplayInfo::gl_fb_config failed
Error I don't have in Xorg. However, everything works normally.