I recently installed Fedora after my Windows install bombed out after an update. I went to play World of Warcraft with my buddies and found that the mouse handling in Wayland was pretty severely broken, at least for WoW. You move by clicking both of your mouse buttons, which starts moving you forward, and then you turn your mouse to steer. Under X11, your mouse is in the same place after you release your buttons (this is the intended behavior). Under Wayland, only god knows where it's going to pop up; it seems to be following your mouse movement while you turn, but not exactly. I said "whatever, it's a good thing I don't play too much WoW" and made peace with what it was.
Then I went to share my screen. I couldn't. Total showstopper -- I use this functionality every single day, and I can't part with it. Wayland is officially off the table.
I've been using X11 since. Everything has worked perfectly. I'm not going to suffer through some software that I actually need to use under WINE having fucked up mouse handling, or hold out for multiple years before I can share my screen again. I can't imagine even attempting taking Wayland seriously if I had Nvidia hardware. If somebody's take is that I should go fuck myself for expecting things to work while they tell me that my other options are wrong and bad because it works for "most people" (which is pretty stupid -- even Average Joe has a lot of showstoppers, it's why the Year of the Linux Desktop hasn't happened), they can have fun dumping time into software that's inferior in many regards.
EDIT: in response to Drew's flagged and dead comment (which I feel is quite unreasonable, he brings up a point about the compositor having some responsibility here too) -- I am not using Wayland under GNOME -- I switched to KDE and spent a fair amount of time digging through DE, WINE, and software settings trying to get these things working. I'm willing to slog through a lot of shit to get the technically correct solution, but some bridges are too far. I'm not changing my entire DE, GPU, software choices, etc. for the sake of using Wayland, even though it's superior to X11, and I think that's what a lot of proponents of it are missing.