I think it only works if you’re either an absolute KDE config file genius hacker or your distro’s repository has actually good default configs and setup. Installing KDE on arch always works well for me but every time I’ve tried it on Ubuntu I just get an unusable mess. One time I had it such that I had to retype my password all the fucking time to “unlock the keychain” and then the stupid update window would ALWAYS show up during the worst possible time with impeccable timing.