It think this one is interesting since it highlights that Wayland is not meant to be an exclusively window manager API. It includes things like kiosks, car screens, etc, where the concept of a window doesn't even exist.
EDIT: on further thought though, it's really odd that they still haven't added in optional APIs for a lot of basic window operations...
> EDIT: on further thought though, it's really odd that they still haven't added in optional APIs for a lot of basic window operations...
That's because like you mention, wayland doesn't look at things as "windows" like X11 used to. It's got surfaces and compositors so it's a really rather different design than the previous systems which is why there's been such an issue with transitioning some kinds of applications and why it's been so hard to get some of the window related protocols to be agreed upon. There's been a decent number of attempts at the positioning protocols that have been kiboshed because there were effective security issues because the protocol would imply that a client could take over the screen from the intended application that the user was using, if the compositor fully follows the protocol or worked the same way that X11 did. Supporting all the different use-cases like this has definitely made progress slower and harder to keep up but personally I think it's going to end up with a more comprehensive and future proofed system once it is finally getting those last couple of things that take it from an 85% solution to a 99% solution.
I have a feeling gnome has struggled more with wayland than kde. For a while i could not drag and drop across screens or to applications i switched to with alt+tab. I dont know if those are fixed. One that isn't fixed that I had happen just yesterday: menus locking focus to one app. If I open the file transfer popup in nautilus I have to first close by clicking somewhere else in nautilus, or else I can't click anywhere. I don't think I ever had that issue under x.
The only bugs I have seen in KDE are in sddm, but I managed to find a theme where they don't exhibit.
