Yes, I have the exact same issue with the 22.5.2 drivers. You need to switch between 60Hz and 90Hz multiple times in Windows Mixed Reality and finally after a few tries doing the switching the flickering goes away. After a reboot you need to do the same procedure. Windows 10.
My headset is a HP Reverb G2
CPU: 5900X
GPU: 6900XT
Reverting back to 22.5.1 fixes this issue.