High iso and autofocus speed and accuracy come to my mind.
A lot of the advances have come in video I think. I don’t shoot any video myself, so it’s lost on me. I guess everyone wants to be a creator these days.
But you’re absolutely right. Cameras are basically figured out, especially for hobbyists and regular working photographers. I bet a lot of people would be served perfectly fine with an older 5d or d700/750.
But so much camera content is trying to sell shit. The companies need to sell more stuff every quarter and the hype train must ride.
There’s some truth to the trolly “let me guess, you need more” meme. Lots of great images were made with equipment far worse than what was available ten years ago. Just get out and shoot and have fun. If you need more, you’ll know it.