I don't really have any interest in the extended universe stuff or the new potential villains. I got started with Iron Man more out of curiosity, and then was sucked it by the generally excellent casting. Loved RDJ, Evans, and Hemsworth in particular. So oddly, it was a character-driven thing for me. So Endgame is probably my last Marvel movie. But I am really glad they ended it as well as they did, because it felt like closure to me for those characters.
Exceptions are I will probably follow Guardians if Pratt stays, especially if Hemsworth is there as well. And Deadpool. But that's because of how perfect those actors are rather than the Marvel aspect itself.