Anecdotal after using Wayland for the last few months: * The brightness control for my screen doesn't work with it. Never been an issue on my Samsung laptop

Anecdotal after using Wayland for the last few months: * The brightness control for my screen doesn't work with it. Never been an issue on my Samsung laptop. I strongly suspect this depends on your hardware, but I'm not going to spend a week to prove it. * The mouse sometimes lags Never happened outside of catastrophic load scenarios. * Graphical corruption in Chromium when on webgl sites. Are you using Nvidia? I've had no major graphics glitches since using AMD. * Blank screen after resume from hibernate. Never happened. The last two aren't applicable, since if anything has been OOM killed recently I didn't notice, and I don't have a Chromecast.