I actually had to look up what black crush was exactly so I knew what to reply with. I didn't know this was even a thing, I'm no monitor expert. There is a test image on displayninja.com (
https://www.displayninja.com/wp-content/uploads/2020/07/va-panel-black-crush-test-image.png) so I used that to test with. I have to admit, it's there, but it's so slight it's really not worth complaining about. If I had to put a percentage on it, if it was 100% ok in the middle, I lose about 10-20% of the visibility of the test text at the edges. It's like the grey is slightly less bright.
I've not used this monitor for gaming at all in the last 3 months as I have an LG 4K beast that became my primary, so I can't advise more on that regard. I have a friend who bought one recently and he uses it for sim racing - he's very happy with it.
The only real major issue is the HDR - it's not worth using. Aside from that, this monitor really can't be beaten on price imo. Sure, there's always a better panel from someone else, but there's a cost to it. For what I paid, I really can't complain. It's pretty spot on. A massive massive leap over my previous 1080p TN.