It works fine. Just varies on TV. Ovbiosuly you have one of the best gaming TVs for HDR but just play around with settings.
I promise, my game looks 100x better this year with HDR than last year. Last year was a headache.
Of course I have the Sony x800 43" and its so damn beautiful with HDR. Without it, everything is so flat after seeing it with HDR.
edit::
Wanted to add it actually works better this year because you can actually turn HDR on and off inside the settings and it works IN GAME. Last year left you with some ugly side effects.