Not op but I’ve been running jellyfin for a few years. At least 2 years ago when I tried it for my music it felt clunky . I haven’t checked since but I encourage you to feel out the experience with a few albums, playlists, carplay, &c before going all in.

Fwiw I ended up using Navidrome m as a server, beets to manage metadata, and play:sub on mobile.