Honestly, I had Navidrome installed for music before I had Jellyfin set up for video, and now I'm used to it. :)
When I originally picked it, I really liked Navidrome's UI and the simplicity of installation, setup, upgrades, speed/performance, etc.
I have heard that Navidrome handles large libraries better (e.g. faster scanning), and I like that it's purely tag based and doesn't rely on any (slow) scrapers (I just used Musicbrainz Picard to clean things up before adding music to my collection).