I updated my MacBook Air to Big Sur without any major issues and the artwork seems to load fine (except a few seconds when launching the app). I don't have any music downloaded through and everything is just available through iTunes Match.
However in Playlists, you can no longer show albums in album view while sorting by year. In iTunes I can select album view in a playlist and have the most recent albums (2020) at the top of that playlist, or at the bottom, depending on how I set it up, but in Big Sur, the option doesn't exist. It just automatically sorts by album name and artist.
This is a dealbreaker so I won't upgrade my iMac where I have my local library. Any workaround for this? and was this an option that was removed already in Catalina?