Gnome

Kinda missing any word on corner cases like multihead setups and fake "fullscreen" (e.g. for braindead games having ideas about screen layouts not offering full sized display resolutions). Both are still a pain in the neck especially when combined. The current system works okay-ish (with gamescope solving one of the worst headaches, no more fiddling with virtual displays that extend over all real displays).

For coding e.g. I often wish vscode to span over several displays. I'd start jumping in circles in anger if something would mess with a carefully aligned size and tabs inside of it automatically ruining the initial "sorting work".