So I've just installed the update. HDR playback via the native video player is fixed. However, playing HDR videos on YouTube has it flashing every other second. Might be a YouTube thing and may need an update itself.
The black crush issue is definitely better than it was. But I'd also like more people to voice their opinions as I think it is better but some videos still have a slight colour gradient issue. However that could be just me.. also this might be the best we will get. I am satisfied with this, although would need everyone who's chipped in to this post to verify how well they've received the update. I want to be able to make this my daily driver again and this update had finally helped do that.
I also watched the Avengers Infinity War trailer. The part where Spider-Man and Dr Strange do their introductions and didn't notice black crush in that scene. Please use your reference videos and see if there is a difference.
As I don't have my S8 anymore I can't really post comparisons like before. But I can post photos if you'd want me to compare to a video you're using as reference or trouble identifying black crush.
Where are you guys located and what carrier. Uk exynos on BT here with no update as yet but crossing all fingers and toes for some improvement at least.
In the UK too. S9+ (128gb) is unlocked and have an EE sim.