OK ready for this! I found the solution and now WOW is humming on DirectX 12 without any issues!
I have a Samsung Odyssey G7. I updated the firmware and ENABLED VRR Control. BAMM that slight flickering of white is now gone. Who would have thought! and no the installed firmware did not have VRR. I never knew a monitor has firmware updates now a days. and I never know about VRR.
So if you have slight flashes of white (background) making you dizzy and annoying as all @*@&# and have a G7 update the firmware and enable VRR Control.
But isn’t it strange WOW was the only game with the issue with the VRR dialable (I had to switch to DriectX 11 to fix it) I even did a 9 min stress test with FurMark and nada.
Thank you for the help.
I found the above fix on a Monitor Reddit G7 post.