Is there a video which compares 1080 and 4k and another one comparing HDR vs SDR?

When I watch 4k content I think, wow, this is great detail. But when I watch 1080 this is very good, but the tiny people in the background wouldn’t be blurred in 4k.

And when I watch a dark SDR video I hate that the movie companies didn’t release HDR quality although it’s a recent movie/ series. But how would I know if it would be better?

I always think that the grass is greener on the other side, but how would I know?

Would it be hard to create such a video file? I guess with ffmpeg. But all else would need to be kept constant which is the difficult part