FYI to anyone reading these threads with the issue, this is 1000% on the bf6 devs or AMD/Nivida driver engineers to fix this and should not be resolved by going out and buying a new PSU, turning off PBO / expo, or reinstalling windows, etc. Sounds like the PSU headroom is the most feasible cause of this since its a hard reset but still, no game should be struggling with a 1600w PSU like mentioned in one of the comments below.
EA! GIVE US AN UPDATE ON THIS, ANYTHING! This is hands down the most critical issue occurring across bf6 since this issue could potentially damage hardware. There is clearly hundreds of people across reddit, forums, etc running into this problem.