One thing that is a huge material difference is better handling of multi-DPI support between monitors, and display switching generally. When I flip back over t

One thing that is a huge material difference is better handling of multi-DPI support between monitors, and display switching generally. When I flip back over to X (because of Steam, like you say), I notice right away problems. Plug the laptop into the USB-C dock and everything comes up wrong, fonts all wacked, window sizes distorted. Have to log out and log back in to get things to a working state. I just don't think X was really designed well for this world of transient displays.