Someone on HN pointed me at setting LIBGL_ALWAYS_SOFTWARE=true which makes it stable on my "radeon" driver GPUs at the cost of some performance (e.g. moving a window that is playing video causes the entire screen to freeze only while the window is moving). That should make it pretty stable with any KMS driver (though the nouveau module still crashes on me every 10 days of uptime or so; I've never been able to figure that one out).

I always point out that all of the issues I run into with Wayland on ATI/AMD GPUs also happen with hardware-compositing on X, but I can turn compositing on X off since it's optional, but, as the figures in TFA suggest, it's a core part of Wayland. I think one minor thing that has put so many people (or at least me) off of Wayland is how many issues are dismissed as "your GPU driver is broken." Well I can't write a GPU driver, and Xorg works better with a broken GPU driver than Wayland does.

My several years old laptop with an Intel P530 runs Wayland with zero issues, to the point where I can't tell you when I switched because it was zero drama. Maybe about a year ago? There was one feature in plasma that I needed to wait on before switching, but I don't even remember which one it was.