I've tried the various server web-GUIs like plesk, Vesta, WebMin, softalicious, Fedora30 (looks nice!), CPanel and so forth ... I've been there, done it. But most of them lack in many fundamental ways like they sometimes are just a pitiful copy of the Bash interface, so one rather ought to use Bash to begin with.
I brought up a couple of Debians with KDE GUI such as Devuan as well as Arch-Linux and so on. Devuan is quite quick & easy, Arch a little less so.
Mageia 6 is super easy to bring up in VNC KDE GUI mode with my vendor (farnox). The stuff you can do is real versatile and much better than plesk paywarez and all the others. The plesk concept essentially is a huge FAIL. Just stick with KDE for your server too! Big time saver!