Screen goes black, fans rev high, then need to do a hard reset. Crashes occurred mostly while gaming but seemingly at completely random intervals. Could be two minutes or two hours into a game.
Build: Dark Kingpin z790 MB, i9 14900KS, 4090 FE, 1000w PSU

Fortunately, I had a Micro Center nearby to test the card on a bench, and the results came back all good. However, I’ve been experiencing issues with NVIDIA applications on my PC. I frequently have to reinstall the app and drivers due to not being able to open the application. I even tried using recovery to perform a clean Windows installation, but occasional blue screens still persist.

Assuming it's not a 14th gen degradation issue, have you tried using DDU to remove the drivers and clean install them?  (make sure to run it as Admin or I've found it misses stuff)  I had a problem a while back with black screens on my 4090 but that was just a bad Nvidia driver, like the actual driver was being reported on Nvidia forums by a number of people as having the problem.  That was around a year ago though and more recent ones have been good.  I haven't tried the latest one or the hotfix one though.  I'm still on the November one that supported MSFS 2024 release.

I’ve had my CPU for just under a year. I used DDU to uninstall the drivers and reinstalled an older version. Since the control center provides everything I need, I decided to uninstall the app. Thanks for the help! So far, I’ve been able to enjoy a gaming session lasting over an hour!