Im not a comic book guy but my favorite parts on all the avengers movies has been at the end of avengers when Bruce shows up to the fight and turns into the hulk mid punch, when cap is giving everyone instructions on how to contain the aliens and then he looks at hulk and says "hulk, smash" and hulk smirk and just jumps off and starts fucking shit up (this one moment brings me so much joy, it's just so perfect) and then when hulk puts the beats on Loki.You know for all the cheering during this movie, none of them matched the pop when Hulk slammed Loki in a1. My theater went damn nuts.
So at the beginning of infinity war when thanos literally kicks hulks ass so bad that he doesn't even want to come out anymore I thought was amazing because it was a very quick and efficient way to show how powerful thanos was but more importantly I was convinced that hulk would eventually get his revenge in endgame and have this awesome toe to toe fight with thanos....
AND IT NEVER HAPPENS!!!!! How does this not happen?!?! Overall I found endgame to be a bit disappointing and unfortunately this was a big reason why.