I got an update through Windows Update today for AMD Display 27.20.11035.3002 that broke my video. During the update, the screen went black and didn't come back, and each reboot booted to a black screen. I ended up rolling back to Win10 through Advanced Startup Options, installed the update in Win10 and now I'm waiting for Win11 to download and install again. Just wanted to see if anyone else noticed anything similar. Once I'm back in Win11, I'll submit a feedback about it.
Have a good one!
P.S. At least now I know that rolling back to Win10 works. lol
Update: Upgrade to Win11 booted to black screen again. Ended up having to rollback to Win10 again. Now trying to install a different driver and hide the 27.20.11035.3002 update in WU to see if I can upgrade to Win11 again. Feedback submitted: https://aka.ms/AAd360v
Update #2: Installing AMD Radeon Software 21.6.2 (which installs driver 27.20.22001.16006) and hiding all AMD updates in Windows Update allowed me to upgrade to Win11 again, so that's my current workaround.