I've been using lxqt on my Pi 400. It's the closest thing to a "light" KDE that I can find, and I like it a lot. The only problem is that the version on the Ras

I've been using lxqt on my Pi 400. It's the closest thing to a "light" KDE that I can find, and I like it a lot. The only problem is that the version on the Raspbian repository is quite out of date. You can get a slightly less old version by enabling backports. I wish there was a good rolling distribution for the Raspberry Pi. openSUSE Tumbleweed is probably the best but it's been glitchy for me and I haven't figured out how to netboot it.