Linux with Roon can you get the full graphics?
Only Roon server runs on Linux, this is “headless” there is no direct user interface.
The GUI to control Roon is performed via a Roon Control application, this can be installed on a Windows PC, Apple Mac, iPad, iPhone or Android tablet.
Hope this helps.
You could also run Roon for Windows under WINE as a remote pointing to the RoonServer Core. That means you can start and stop Roon as you please while RoonServer hums away serving up music.