Marvel’s quality has been in freefall since before Endgame came out, and most people lost interest after the payoff. Their shows are terrible, and the last movie was so bad that even critics are lambasting it.
DC’s cinematic universe has been a clusterfuck from the get-go, and although they still make epic animated films their live action movies are rarely worth watching.
Hollywood has been blaming super hero fatigue- claiming that the genre is overdone and will go the way of Westerns.
The fact that people are still interested in Invincible proves that the genre isn’t dead, it is just full of shitty films and shows that nobody wants to watch.
I think Marvel had struck a gold mine with its OG run, which personally started when I was 8, and I was enamored to stick around to the end. When that story ended, I was like 18 or 19, and by then the new movies didn’t draw me in. They had nostalgia on a leash, among beloved characters played by actors who wanted to do other things. DC is all over the place, but batman keeps coming back, since he can be reimagined in so many ways.
Invincible is comparable to the boys – a realistic depiction of superheroes where the intimate stories are focused on human problems the heroes have, which grounds them. I think that is why spiderman movies are so well received. But both the boys and invincible turn the fun “watch the good strong man win” on its head. So that is why it is refreshing, cause most people grew up watching movies where superheroes were more or less perfect besides some small issues.
I get what you’re saying about fatigue, but like what /u/GinTonicDev said, it’s good stories that make it, and Invincible was written way before the MCU was even conceived.