I install Fedora Workstation and change nothing. I’m pretty happy with GNOME in that case. KDE has been too fiddley for me the last few times I tried it. It’s there a distro that has a default KDE setup that feels minimal and out of the way?
It can but bitrate is limited without direct connect. It’s an awful way to configure Plex.
The relay feature is terrible though. It ruins video quality for any stream over 1mbps unless you pay and then it still ruins any stream over 2mbps. Any good plex server will have direct connect enabled just like jellyfin.
What’s the security risk you worry about having a plex media server or jellyfin server listening on the Internet?
I use something from each tier except the As Seen on TV tier.