Can you explain? Are you manually setting tags for every anime you add? How does it work with requests made thru Seerr?
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