For me there's one that's still carried over from Big Sur, the file transfer dialog stays pixelated in Mission Control if you have multiple transfers & only one remains. I think it tries to stretch the last image/thumbnail to the older window size, ends up looking blurry/distorted

Along with some Safari bugs in compact view where opening the same website like HN(but for another post) would take me back to an existing tab instead of reliably opening it in the background