It's not about quantity it's about the lack of quality control.

If all the shows were like Andor nobody would have a problem...but half of Mando is unwatchable. Most of Boba was unwatchable nostalgia bait and both shows have a specific need to recreate western tropes with zero twist.

Marvel is pretty much the same problem only more concentrated on the specific problem of story fatigue.

And it's not that I don't like superhero movies anymore...the formula is pretty universal. I don't like how modern marvel still needs to push plots and new characters in the middle of movies that have nothing to do with them...massively constraining the creative heights allowed in the very wacky setting.

Did I like Riri Williams in Wakanda Forever? Sure. Did I need her or Ross to be in the movie? No. Could the movie have improved with more time dedicated to the villain? Yes. Not to mention the plot was rather identical in structure to the first one with an early movie car chase into an action standoff during a pitched medieval style open area battle...aka...its not allowed to be fully creative.

Pretty much all my issues with 90% of marvel content stems from these side elements being placed into the movie arbitrary to the core dilemma and story. The moments where my brain has to switch off became I guess X character is being plugged because they are going to be in a new movie or tv show soon.

The only ones I've genuinely enjoyed did very little of this or were just so strong storytelling wise I got over it. Wandavision, Thor: Love and Thunder, Shang Chi, etc.