Imo, why ask the question with the assumption “is based on a server-oriented distro” when “dektop distros” such as Ubuntu, Linux mint Zorin are then using debian? It is a bit conflicting isn’t it? it all boils down to personal taste, if you like ubuntu, use ubuntu, if you like linux mint, go use that. If you want to use debian or arch or fedora, you know…

For me it is easy enough, stable enough, bleeding edge enough (testing/sid) to tinker around without invading my machine with stuff I don’t necessary want

I dont think you cant atm see: Debian and KDE