This may be a “no duh” post, but recently I turned off HDR on my 2nd gen 4K Apple TV. I’m running a TCL 65” 4 series. It has hdr 10 but it’s not FALD. I always had HDR on because it felt like that gave me the best image. I was shocked when I turned it off and got better color accuracy and better contrast out of the tv. Feels like a gimme that you shouldn’t use HDR without FALD or Mini LED, but I am much happier with the setup now
Sure, but OP is pointing out that not all HDR is created equal. LED screens without full-array local dimming of the backlight might not do HDR that is really any better than SDR, even if it is brighter. It’s worth trying some content with and without HDR matching enabled.