I have the exact same problem and googled it. It says that "atikmdag.sys" means that a graphic driver from ATI/AMD does not function correctly. That was also my guess because the screen is flickering before the blue screen. Im trying to repair the driver. If you google that problem it will give you a solution on how to do that. Gust google "atikmdag.sys blue screen" and you will find instructions on how to do that. If this will not help .. well than maybe you have to use some old drivers where you know the problem doesn't occur. First i will test to repair the driver ... or configure it correctly so that this problem won't happen ever again. If it works i will update this post.

UPDATE1:

To make things short. I tried many things but only one thing seems to help so far. I used the AMD Cleanup Utility to remove all old (and maybe corrupted) drivers. Then i installed the newest drivers from AMD (February 2020) and tested WBC2 and WBC3. Mostly the game crashed into an blue screen while tabbing in or tabbing out. Sometimes already after Start or even when i tried to close the game via the EXIT button. So far no more Blue Screen issues.

UPDATE2:

Nothing helped. A few days later the same problem occured again. I don't know why or what has changed since then. The atikmdag.sys file seems to be unchanged since the reinstallation of graphic drivers. Maybe using older drivers helps but at this point i don't want to rollback to older drivers since WBC2 and WBC3 are the only games so far to crash into an blue screen. If someone ever finds a solution PLEASE tell us.