So Just checked with Game of Thrones and, with HW decoding, it's crushing blacks like mad, more so than my Pixel 2, despite crushing a lot less in pictures. There's some weird going on with video hardware decoding.
You can easily check this be switching beetween H/W and S/W decoding. And the weird thing is: if you take a screenshot with H/W decoding, and then check the pic afterwards, the black crush is not there.
This is something that can be fixed via software, but knowing my luck, such thing won't happen.
Phone used for comparison: Galaxy S10e (European version) and Pixel 2.