> The Jellyfin app can't save videos for offline playback

That's unfortunate indeed. Is it planned to be implemented at some point?

> I regularly run into random hiccups and playback issues which I haven't had happen with infuse

Could it be that Jellyfin buffers are too tiny? Or that it's using a higher framerate? In any case, it sounds like it's worth reporting to the Jellyfin project.

Have fun