Hey I had the same issue with BF V - constant crashes after ~15-30 minutes and it kept getting worse with every restart. I really tried a lot of things like changing several BIOS settings, deleting and reinstalling all drivers, even thought about buying a new motherboard or buying new RAM and much more. Well now thanks to your thread I tried installing version 20.2.1 and now after 1 hour of playing it seems to be working perfectly fine again.
I made this account just to thank you: THANK YOU VERY MUCH!
Maybe it helps for you, too.
Just
1. download the 20.2.1 version (https://www.amd.com/en/support/kb/release-notes/rn-rad-win-20-2-1 )
2. uninstall the AMD Readon Software and restart
3. install the 20.2.1 version you downloaded and restart.
I wish you best luck.