Installed my new 7900xtx yesterday.
Used DDU to clean out the driver for my old 6900xt and installed 22.12.2 downloaded direct from AMD.
It seems this driver doesnt get along with the, admittedly old, COH game engine which is Open GL based. Pre-Vulkan.
I've been testing settings and have found setting anything related to shadows to more than the basic/minimum will cause the client to freeze or not load depending if the change was made in game or on the character load screen. Once it has frozen it must be force quit using the task manager.
I have also encountered this on Rebirth.
As time permits I will look for more settings that crash the game.