Don't know. I use the ATV4k for all of my HDR streaming and have never seen any issues with dark scenes, loss of detail, etc. Others who have viewed my C8 have said the same thing.
I hear ya, like you said, definitely don’t look for it. I didn’t think I had it at first either but it was there. I watch with lights on as well so I had to make my room dark and then I noticed it. My only issue is that if it’s there (minor or not) LG should definitely get it worked out. Since it doesn’t bother you, that’s great! I wish I hadn’t gone out of my way to look...haha.
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