Thank you deptec, you were absolutely right.
I disabled driver verifier, DDU'd the GPU Driver, installed Realtek drivers from ASRock, did a clean install of Radeon driver 19.9.2 WITHOUT HDMI drivers. Now I can play again without instant BSOD.
I can confirm that PUBG launches now, and I just played ArmA 3 for a few hours without issue. I'm thinking that the audio driver must have been my issue since the start.