I just upgraded to driver version 20.1.3 from 19.12.1.
I have two 1440p 144hz monitors (Both are connected by DP).
I found that if I set both on 144hz, I will keep getting the blue screen "video_tdr_failure" (atikmpag.sys) once I log into the desktop. However, if I set one of the screens to 120hz, the error will not appear. I don't know if it is a bug or something else, but I don't have this issue when I was using the 19.12.1 version.
My CPU is R5 3600 and motherboard is Asrock B450
1) Check this post https://community.amd.com/thread/180166 and try to increase the default TDR setting as it suggests.
2) Make sure you have the latest bios version installed for your motherboard.