Indeed, customization through the various distros is the basis of Ubuntu.
I have practically used most of the official derivatives of Ubuntu, and each of them has a special feature. I am currently using Xubuntu with Xfce.
KDE makes Plasma its main element, but at the beginning it also had its problems.
Greetings @steevc and thanks for commenting on my content on #HIVE
I used to use Kubuntu for several years. I think the next version of Ubuntu Studio may move to KDE, so I can see how it has changed. I just don't have time to switch distros much.
Kubuntu had some problems a couple of years ago with Plasma. Now instead it seems that the community has returned to work with enthusiasm.
Regards and thanks for commenting