I have never used an HDR display before so I’m not sure how it’s supposed to look.
I have been playing Spider-man both with and without HDR and unless I’m staring right into the sun there is literally no difference. I have always heard people talk about HDR as something incredible but I’m honestly disappointed.
I also played Tetris effect: connected and HDR seemed to just make all the menus darker, but the rest looked the same.
Have I done something wrong or is this how it is supposed to be?
Honestly in many cases it looks worse, and even the opposite of “high dynamic range”. I don’t get the hype.
Likely you haven’t seen it on a good display. It is quite noticeable and a big improvement on a nice display. HDR 400 is not really HDR and not worth running it in that mode if that’s all your display supports.
I’ve seen it on SD OLED
As well as several HDR monitors.