No, basically, this thread is about superhero movies.
No, the OP is about superhero movies.
Basically the theme is about mainstream extremely popular movies NOT making their actors superstars. They seem to think this is a recent phenomenon and only limited to superhero movies.
I pointed out Star Wars.
Let me give you another - Michael Biehn. He was in two of the 1980s biggest blockbusters - Terminator and Aliens. He is a good actor, he was good looking and a hero in those movies. He even had a pivotal co-starring role in the Abyss. But his career never took off.