As someone who has made the switch for an year or so:
Legacy apps with xwayland do not scale properly and appear blurry and pixelated on my multi-monitor setup. This sucks because there are a lot of old apps that aren’t ported.
No great onscreen keyboard that works well.
Problems with Java apps like webstorm and pycharm where they won’t scale properly and are unusuable.
Even my IDE (code) and other electron based apps glitch sometimes.
I like Wayland so far but these have been really bothersome.
As someone who has made the switch for an year or so:
I like Wayland so far but these have been really bothersome.