Additionally, there is an (experimental) effort by a KDE developer to further generalize KWin's functionality by ripping out most of what it does into a separat

Additionally, there is an (experimental) effort by a KDE developer to further generalize KWin's functionality by ripping out most of what it does into a separate wlroots-compatible library - https://github.com/winft/theseus-ship https://github.com/winft/theseus-ship