I am setting up my first jellyfin server via docker, and I am offered the option to either use TMDB or OMDB. I have jellyfin on a LAN-connected device w/o VPN connection, and I am concerned queries to those DBs with file names of torrented files can get tracked and reported to my ISP. Could that be the case? And if so what to do about it? Are there more privacy-preserving metadata services than others?
Based on a quick glance of the API documentation it looks like TMDM/OMDB doesn’t receive your filenames, they use unique IDs assigned to their shows and potentially searches based on titles/episode numbers that Jellyfin is already aware of.
Even if Jellyfin used the filename to search OMDB/TMDB, the headers, body, and the path of the URL (api.themoviedb.org/<path>) are all encrypted by the TLS connection so would not be visible to your ISP.