Simplest explanation is HDR enables more color bits per pixel so you have much higher contrast in bright and dark images. It’s pretty much essential if you are using OLED panels as these can turn off pixels for a realistic/not washed out black.

I did the same on my media center mini PC. Any idea how to check/enable HDR?

Never been there but I miss it too.

Obama installed Apeshit Pie. They’re all to blame.