I have the same problem with AMD Graphics card
I had a Nvidia 1080ti and was getting 240fps with vulcan. Upgraded to a RX6900XT and freezes at Start screen, ok with openGL but only 80fps. Have installed Radeon driver 21.11.1 with same result. I'm running Windows 11 as well
X-Plane works fine with Vulcan and 6900XT