Disney has done Hulk dirty. He started off fairly well, having that big Leviathan punch in Avengers and going toe to toe with Thor.
But as the movies progressed he seemed to get nerfed more and more:
AoU: Got knocked out by Ironman
Ragnarok: Needed to be saved by Grandmaster against Thor. Didn't do much for the rest of the movie other than fight a giant wolf
Infinity War: Got the crap beat out of him so badly by Thanos that he refused to make an appearance afterwards.
Endgame: Didn't have a single good fight scene and spent most of the movie being a joker. Also couldn't heal his arm from the snap.
The weird thing is, majority of the other major Avengers got upgrades as the movies progressed. Cap was constantly getting more overpowered. Ironman eventually got his strongest armor in IW, Thor also constantly got more powerful till IW then suffered a big set back in Endgame. But at least there was improvement.
There was none for Hulk. Just a constant degradation.