Not sure what might be most helpful since you say it's random--does it ever happen anywhere else besides when you're running OBS?  If it's only when using OBS, there are known issues which require disabling HDCP/HDR to solve if it's not one of the known OBS issues related to a recent W10 update ( See OBS support forums ).  If not related to the former, and you've already tried/can't find anything helpful here: https://forums.evga.com/Comprehensive-Windows-10-Black-Screen-Trouble-shooting-Guide-m3131813.aspx you may be in an RMA situation. GL and hope you don't have to RMA!

Yes, I noticed you mentioned new PSU previously and cables checked--doesn't sound like that's the problem; Not sure what's causing your 4.5X relative spike there since your Cpu/Gpu load in that screenshot are both low.  If you already tried using DDU/driver reinstall, video doesn't come back with a "WIN+CTRL+SHIFT+B" display refresh once the problem has occurred, and/or you've already tried clean boot troubleshooting to eliminate software causes, only other thing I can think of is to try a different Gpu if available to try and make sure it's Gpu vs. Mbd. and you could try the other HDMI/DP video output on this card you're not using to see if it works without issue to avoid having to RMA for now even if you're sure it's Gpu to get to the best time for you to RMA and minimize downtime if you wanted depending on remaining warranty time.

It seems by your "you guys" comment you think I work for EVGA, which is not the case.  I'm just another person here in the forums often, and trying to help and build good Karma   Maybe pausing Windows Update and the Asus SW temporarily while you're troubleshooting helps stop the auto-update, and hopefully the earlier driver version works better for you.