Renaming and metadata is default. Even though I just checked, I have disabled all metadata “providers” in arrs apps (not sure is this defaut?), but I have also set jellyfin library metadata to TheTVDB as first priority. It was working fine at default settings, but had a mess with season numbers of one show (dragon ball) before the change. Iirc arrs are using tvdb for metadata
Its maybe pain to set arrs, but once you get deeper in the setup it becomes much easier and its deffo worth