

Just to be safe you may want to copy important files to a cloud storage AND usb drive before formatting the drive.
Also don’t overthink this and there is nothing wrong with Kubuntu, but Kinoite is going to be very similar and a little more resistant to n00b tinkering mistakes.
Jellyfin is great, but in defense of Plex, they announced that remote streaming would require one of the two parties to have a Plex pass was coming back in March so I don’t know if it’s fair to say they are holding anything hostage.