+1 for TCOM, TDOR (usefull when there are many versions of the same album), TIT1, 2, 3 and TPE1, 2, 3. Also displaying of these tags would be good to have, if they are too long for a single line -> to allow multiple lines or slow rolling to show all name/title/data.
Now I am in process of retagging my music library but just found is a total waste of time since the results will be far from my expectations.
IMO, these guys from PLEX are just focused on what they think is important and not what is required. It would be nice if they change their behavior, get out from their box and start to answer to customers requests.
And btw, there are a lot of other issues and bugs, but why to bother to share or ask for fixes if there is nothing happening? As I said, a total waste of time. It is clear that PLEX devs are not on the same page with their customers. Forcing us to adapt to app and not make app adapt to customer needs.
My 2 cents on this topic.