Sure, but their default is usually GNOME3 these days. And there's always a ton more effort towards making the default work seamlessly. Kubuntu is notorious for

Sure, but their default is usually GNOME3 these days. And there's always a ton more effort towards making the default work seamlessly. Kubuntu is notorious for having issues trying to fit the "Ubuntu" way and not quite getting it right. (Font/theme issues, primarily) Fedora's KDE spin is pretty decent, but that's mostly because it is bog standard aside from the logo and RPM/dnf integration. Outside of those two, you're better off using a KDE-primary distro in most cases.