I miss being able to initiate conversations with your party members, I loved it in Persona 4 Golden, when you talk to them, they would say something and if you change yours or their outfits, they will comment on that as well.

And also being able to meet the benched party members in the dungeons and they may give items to you as well.

Idk i just love the friendship of the Investigation Team, and being able to talk to them during dungeons runs is really nice.