For me it’s been such a night and day experience it’s hard to imagine needing to explain why Wayland has been better. But I’ll try.

The big thing that got me to switch was actual multi-monitor support. X has a bunch of hacks that “work” but it’s a mess and constantly broke for me. I’d just randomly log in and it was broken and I’d spend a day in xrand a x11 conf files re-building it from scratch for no apparent reason. Wayland multi-monitor has just worked for years now. It’s also real mutlidisplay support and really quite good.

Ive seen complaints about Nvidia but even with them dragging their heels I’ve had a better experience with their drivers on Wayland. Probably tied again to multi monitor bit it’s just been smoother and I notice if I accidentally log in to an X session even on a single monitor setup because things are clunky and features missing.

Anecdotally DEs feel like they start faster and work smoother. I saw fewer crashes after switching as well. The crashing might be better these days then but I don’t see a reason to test it.

For the sake transparency, it’s not perfect. Compatibility really has been great and I struggle to tell what’s not native. But I mean this is Linux desktop and there are challenges regardless of your choices.

I enjoyed guake terminal. It’s a bit troublesome to make work well.

The one other thing that’s been troublesome is some screen capture stuff. Honestly the screen sharing in Wayland lovely and so much better when it work.

But some programs do their own thing and want full desktop control and that’s a struggle. For example moonlight/sunshine require what seems to be some extra tinkering. Similarly screen collaboration apps that try to do the full control thing tend to not work well or at all.