It was significantly harder to set up remote access for Jellyfin than Plex 6 months ago. I ha ent attempted since. With Plex there was literally no set up, it just works. Until it just works without having to do any extra work, Jellyfin will struggle with adoption.

I have both running, and thatd a big difference to me. Also I prefer the way Plex detects intros and credits for skipping and their detection for captions. Once that’s all sorted Jellyfin wins in every field.