Huh, tbh I’ve never given KDE a real try. I used it way back in the day on OpenSUSE because I wanted a windows experience but that was when I was still playing around with Linux. I’ve never used it full time. My first full time DE was cinnamon and eventually I decided I wanted something radically different and so went to gnome 3 and never really considered KDE as radically different from anything I had used before.
I didn’t know KDE had layer shell 🤔. I knew it had some wlrootsy stuff but that’s interesting. Looks really nice though