How much time have you spent looking for great, unique designers? Not just digital but physical too, on local messages boards, farmer's markets, at local schools?

How much time have you spent looking for unique "electronic dance music"? Have you gone to small local events showcasing house, techno, grime, etc? Have you found the small sections of the internet where people are innovating new electronic sounds?

How often do you search for unique audiovisual content creators? On the large sites sure, but everywhere in between?

A low cost of entry, combined with a low overhead to find something close to what you want, means that, sure, there is both a lot of sameness and that sameness seems to be staring you in the face.

When you look below the surface though, a huge amount of content is getting created, by people who in the past might not have been able to. Electronic music artists who couldn't afford physical synths, drum machines, and recording equipment. Visual artists who can do more with a phone than almost anyone with specialized cameras.

So peak homogenisation? No.

Peak content output per person? Probably also no, it's still going up, but I suspect this is what you are observing.