After I beat Persona 5 Royale I tried to scratch that itch with Persona 4 Golden, which I had heard was even better than P5R. While the story may be better, I can't confirm that myself, since I couldn't get used to playing without an the QoL additions introduced in P5R.
All this to say that I would be very interested in playing a definitive Persona 3 (in the form of the remake), but I sincerely hope they keep the QoL changes from P5R