Once you get it set up (which can be a pain) arch with KDE plasma is very good. KDE is very windows 10 like and intuitive. Arch gets rid of that issue of a mix of different installation methods, other than installing yay, I've never had to manually install something beyond "yay -S pkg", the aur and PKGBUILD files do really solve this issue of painful installations.
There really isn't much to set up especially for anybody diving in with Kubuntu