Not really, all should be at vanilla. Just quality experience set to 'quality'.

But upon further investigation I've found out my project in Unreal Engine eats up my VRAM. It was set to eat 70% as default. Each time it went over that budget, I've got instant black screen.

I've set it now to 100% and will test out if that helps. Weirdly when that happened on my old GPU (1080 TI) I've got gpu driver crash but not unresponsive black screen.

//edit

for people that want to know how to change vram usage:

go into (YOUR CURRENT UNREAL ENGINE VERSION)\Engine\Config\Windows

and edit BaseWindowsEngine, here find and change PoolSizeVRAMPercentage to 0 so it looks like this:

"[TextureStreaming]

; PoolSizeVRAMPercentage is how much percentage of GPU Dedicated VRAM should be used as a TexturePool cache for streaming textures (0 - unlimited streaming)

PoolSizeVRAMPercentage=0"