Used all the Ubuntu and Debian variants but they always broke.
But I simply sticked with Fedora Kinoite because the KDE packages are normally up to date, not like on Kubuntu. So the 103 bugs I reported that are still open will possibly get fixed and I actually get the fixes, and the already closed issues will also arrive at my system.
But at the same time if I have an issue it is very like an upstream KDE one.
I will never need to reinstall or unbreak my system again.
That is not hopping, its just “finding something that works (with KDE)”.
Arch with enforced full snapper snapshots may be okay but I dont think it is good. Same with OpenSUSE tumbleweed which is similar. Both are worse for stability than rpm-ostree Fedora.
If I used GNOME I guess many more distros would work.