I started getting superhero fatigue back when Captain Marvel came out and now I can't remember what the last superhero movie was I saw in the theaters. It must have been pre-COVID. I didn't even see the latest Batman movie in theaters which is just unfathomable but it's the truth. And my enthusiasm has waned further thanks to so-so shows like Captain America & The Winter Soldier and the terrible Secret Wars series. Even with movies I enjoyed, like Shang-Chi, I grow bored of the CGI-fest fight scenes.
I'm sure we'll get some more good movies over the next few years. But eventually the superhero craze will pass and we'll move on to something else. Barbie and Oppenheimer have certainly shown that you don't need superheroes to find an auidence.