I would also be quick to point out Plex’S streaming capabilities far outweigh that of Kodi - I have the plex app on my phone, my Samsung TV, and my web browser - all of which connect to a single plex backend running Linux w/ no X11 and work ‘good enough’.

Conversely, Xbmc requires X11, and last I checked (2016) didn’t do a great job at central server for storage and pretty much only ran on Linux/Windows thick client hosts.