CentOS Stream 10 will likely use Plasma 6. That will be great.

They always add features and in Fedora it is a bit breaky breaky again. After a few minor updates its fine again, and just getting better.

Just the icons are missing I think, then it would be a great LTS.

Kubuntu uses Calamares, which is a nice installer. But I managed to wipe a drive once! Because by default it loses the destination drive selection, I went back to check if everything was fine and it selected my main drive again, I continued without noticing. woops!