I'm not using seerr, I've used overseer and jellyseer for a while years ago, but as I'm the only person interacting with radarr/sonarr... The value wasn't there for me.

I suspect it's would still work, but haven't tried it out

Sonarr/radarr has the ability to configure multiple library roots. Those are available in a drop-down when adding a new series through the (son|rad)arr interface

This is eg /media/(anime-series|series) for me. Then I defined a rule for those paths to add an anime|lifeaction Tag.

This then controls the tracker and quality profiles, as well as language preferences etc

Ah, I know about root paths, but didn’t know about path-specific rules. Thanks, will check this out. And yeah, it should work fine with Seerr.