It’s Utility-sRGB-Texture ( both HDRI and Joker pic ).
All these images are in ACEScg OCIO ( sRGB ) display it’s a screenshots of V-Ray.
As you can see in the first room image it looks terribly wrong ( the HDRI/Room is good reference for the colors captured by a camera ). I use Utility-Linear-sRGB for every texture no matter what kind of.
Maybe it’s just a thing in V-Ray or when using OCIO.
You can see this guy gets totally different result when using sRGB-Tex:
If i had his scene and did the same in V-Ray, the Captain Marvel poster for example would just look almost black.