I've been using Jellyfin for several months now, for me it works nicely. I did a bit of tuning over time (e.g. "OK, now I'll spend a bit of time improving how subtitles work"), and after learning how to set that aspect up, it just trucks along working. I have a handful of friends using my setup too and haven't had complaints.

Beware though that if any transcoding is needed, the RPi probably won't be up to it. Instead I shelled out a little bit for a small Intel NUC thing that can do hardware conversion.