I noticed that when I try to run apt update after enabling the plex repository, i get the error: The repository 'https://downloads.plex.tv/repo/deb ./public Release' does not have a Release file.
This can be fixed by changing the repo in /etc/apt/sources.list.d/plexmediaserver.list to: https://downloads.plex.tv/repo/deb public main, and importing the plex key here.
Just wanted to let you know so you can fix what needs to be fixed. I would do it but I don't know how.
Thanks, Andrew