Hulk did important things (snapping everyone back to life, holding up the underground mountain like he did in the Secret Wars comic) but he didn't do "cool" things. That was unexpected and I believe that makes him the one single Avenger who didn't have a huge moment in either IW or AEG. I actually thought of JAWS afterward and wondered how upset he'd be. Sorry that this film didn't deliver for you man.
Because for me that was one of the most exhilarating and profoundly satisfying cinematic experiences I've had in my adult life. I must have had the perfect crowd too, the energy of a sold out IMAX auditorium laughing, sobbing, and cheering many times over will forever be a part of me. This film gave me what a lot of you experienced with the original Avengers (though even more I would imagine with all the tear-jerking moments whether they be sad tears or happy tears.)
After the TROS and Mandalorian previews I even had the slightest sense of "can we just get the MCU over with" beforehand but now to say that I'm blown away couldn't be a bigger understatement. So many things that have been building up, so many "best case scenarios" with regard to what the Russos would deliver, and for me they damn well hit pretty much every one.