Apparently (checked with AI), Hero 4 Black was the first camera with 30 fps 4k video and was released 12 years ago already (how time flies)

Frankly, after 4k/30 and 1080p/60, there are strong diminishing returns, because most people these days watch videos on their phones in suboptimal conditions (or older desktops that may still be on 1080p), so what are they going to do with your 5k/6k video?

Sure, you can keep doing minor improvements to sensors and optics, but for a consumer it will not justify getting a new model for $500.

Also, competing with smartphone cameras which have gotten better over the years. I bet 99% of people would not be able to tell a gopro video from a phone video.

Transparency on AI use is a sin now, I guess.

The greatest advantage of greater resolution is that you can cut for a better framing. But who has time to go through good of video for editing?