Looks good! I can see about 30% of the same hallway with HDR on :/
It's your settings then. I have a B6, and what we're seeing shouldn't be drastically different. I just reached the same section again in game and my picture looks exactly like in the screenshot. I also have FOV set to 90, but that's not going to affect brightness/black crush, only what objects are actually within your view.
I was using RGB Full, but since you said you use 4:4:4, I switched to that. Easy way to tell at the beginning if you're getting black crush is by checking the right door of the car as Ethan is driving up to the woods. You should be able to clearly see the wood looking material on the interior of the right door. When you head towards the house, you should be able to see
both the right and left doors of the locked gate reflecting in the puddle beneath it. If the left door reflection in the puddle is missing, your black level and maybe brightness are not set correctly, although it's kind of hard to actually crush blacks with 4:4:4 since that's set to limited anyway, and using "High" washes out the screen entirely.
For reference, I use these settings at 4:4:4
HDR (Game)
OLED 85
Brightness 50 <lowering it at all on my TV makes the reflection disappear, and the right door of the car looks wrong. When using RGB Full, I have this at 52.
Contrast 98
Color Temp W30
Black level Low (High with RGB Full)
HDR Brightness (MAX) 1550
HDR Brightness 265
I'm playing on a 850c bravia and I'm not seeing any banding. I'm using 422 at 12 bit depth.
Then the LG OLEDs must just by default have awful banding.
This is what I'm seeing at the start in the Mia video, except with about twenty times as many steps:
I actually see what looks like the above any time there's a light source that's emitting a lot of light in a very dark area, such as the attic of the house portion at the beginning