So then Jellyfin gets full marks, right?

Lmao, that’ll teach me not to skim ¯\_(ツ)_/¯

D&D Chronicles of Mystara (side-scrolling co-op) I think is 4-player

Cuphead - 2 player

A Hat In Time - 2 player

Streets of Rogue - up to 4 players

Vampire Survivors - I think 2 player for local co-op?

Most of the old Telltale games have co-op in the form of voting for responses

Binding of Isaac: Rebirth has full co-op now, I think up to 4 player. You may need the DLC for the best co-op experience

Crypt of The Necrodancer has solid couch co-op

Baldur’s Gate 3 has a full split-screen 2-player couch co-op mode. Both players need to use a controller. Works great.

That’s a big feature PR of over 2000 lines of code. It’s not a bug fix release kind of patch. 10.11 for sure

Personally I have a secondary external SSD I use for my cache and transcode directories so that my transcodes aren’t throttled by being read from and written to the same disk.

Also of note is that Jellyfin does have a cron job built into it to clear the transcodes directory. You can see it under Dashboard -> Scheduled Tasks -> Clean Transcode Directory. I have mine set to run every 24 hours.