I was a regular Plex user, until they had their mental breakdown recently. So I switched to jellyfin. I have only two problems with jellyfin so far. One of them is subtitles (the other is the “remote controller” doesn’t always sync properly).
Plex had an integrated subtitle downloader. You could just start a show, see that it was lacking subtitles and Plex could isntantly download subtitles for you. That doesn’t seem to work in Jellyfin.
Is there an option or a plugin somewhere that can do/fix this for jellyfin?
Not sure if this gonna help but I read some user use kodi + jellyfin addon mainly for the transcode thing but also you can get subtitles easily with the a4ksubtitle addon or something similar. Hope this helps