In care you are really un-aware... Yes. They have plots, and they're very well made.
Were really well made. Kevin Feige just turned 50, and it shows. He lost his edge.
https://www.youtube.com/watch?v=a8BJ8AufQt8
(arguable She-Hulk spoiler)
I'm going to exaggerate a bit but not much. I have "that friend", I'm sure we all do, who insists there's a reason to watch whichever 5 movie before this one. But it's a movie about fighting. Those 2 minutes of development matters so little to anything that makes the movie what it is. And it was designed for people to be able to follow without having watched anything before it.
So sure they have plot. But it's completely inconsequential. Because fighting.