I just did the 22.04 upgrade thing, and it seems that Firefox will be held at v 99 if you don't have snapd. So beware of old/held packages as you update.

Another delightful thing I found is that Ubuntu took its very own special path in the "Sensible things to do in the Python 2 / Python 3" debacle: remove Python 2, but don't link python3 to python. Move fast and break stuff is very tiring when you're constantly getting beaten up like this.

 Stewart