I upgraded from 22.10 to 23.04. I have to say, it was the more troubled update I had in many years.
One of the problems I still have is that some snapped apps open their windows visually corrupted. The first app I noticed this was firefox and I submited a bug report.
The same thing happens with FreeCad, also snapped.
I notice that snaps use a fairly old mesa version, Mesa 21.2.6. Not sure if this is related.
Does anyone else have this issue?