A huge letdown after Infinity War epic tragedy

Rating: 3/10 (25 April 2019)

As the film starts, we still have the events of Infinity War in mind, all the loss and confusion, and the beautiful final scene : Thanos in his farm, and his face split between the satisfaction of a mission accomplished and the sorrow of what it cost him ("everything"). It was really an exciting finish, but all for none.
Everything they did well in Infinity War was thrown to the garbage can in Endgame : in the first hour only they managed to destroy all the emotional implication of the viewers by throwing all the jokes they could think of to our faces. Want to see a fat Thor play Fortnite ? Here you go. What about Hulk taking selfies and making dabs ? We got you pal. Shameful, to the point that when they finally decide to gather the remaining Avengers and try to reverse the course of things (by going back to the past), you already don't care anymore.
They sucked all the epicness of the previous film to serve you this final product, a massive fan-service film of 3 hours, where each hero has their "heroic" moment just to remind the viewers they're still here (at least physically, most are of no use in the story). We got it, your contracts are done with Marvel, no need to stretch it for that long.
And what about Thanos, the biggest accomplishment of the last film ? What they did to him is also a disgrace : all the beauty of the character that was imposed to us, the viewers, as the villain of the story was coming from the ambiguity of where he stands, and the fact that lots of us could believed in what he was willing to sacrifice to reach his final goal. He taught us how to feel and care for an antagonist like never before in a Marvel movie. But here, his personality is suddenly turned into the one of a heartless monster, ready to slaughter the entire universe just to create a new one to his image (which was not his goal in Infinity War). What is the point of the last film and all its well-done build-up if it's to impose us now that the Avengers are the only ones to be right and that automatically Thanos is wrong ? What makes them believe their opinion must be everyone else's opinion and if we disagree with them we must die ?
The film has some nice moments (some beautiful shots), but they sacrificed all the logic and integrity of Infinity War to serve us with easy, poor nostalgia and sentiments. Was Infinity War an anomaly in the Marvel universe ? And Endgame made to finally correct the course of the story, toward a more conservative ending, celebrating its heroes and the actors that play them more than its potential wisdom ?