Yes, I've felt like this for years. Around the time Iron Man 3 came out iirc. I pretty much ignore them at this point, like if I see a preview or poster for a superhero movie my brain kind of just shuts off and doesn't even attempt to process it.

But I have friends who are still not tired of them so it's good they're enjoying it. It's not like I think these movies are taking up slots that superior movies could fill so I'm pretty indifferent by now; if their overall presence bring happiness to large amounts of people then keep it going. I think the last superhero movie I saw was the original Guardians of the Galaxy, which was good.