This clearly shows that this movie really means business. Loki dies in the very beginning of the movie while he was trying to unsuccessfully deceive Thanos. The movie begins from where the post credit scene of Thor: Ragnarok ended.
But Avengers: Infinity War is very much different. Even in The Avengers and Age of Ultron it's just 'now all those guys come together, beat the bad guy who wanted to take over the world and save the day'. Thor? A guy 'loses' and then gets superpowers, beats the bad guy and saves the day. Captain America? A guy gets superpowers, beats the bad guy who wanted to take over the world and saves the day. Iron Man? A guy gets superpowers, beats the bad guy who wanted to take over the world and saves the day. I didn't put much focus into watching them all, since most of them were just following one pattern. So a couple of months after this movie released, I skimmed through all the MCU movies from Iron Man to Black Panther. Before that I wasn't very much into superhero movies.
It was only after the release of Infinity War that I got interest in MCU. Reviewed by Puroo 10 / 10 How MCU should have always been like