Bumping this because I'm having the same issue on a 7900 XTX. It's very frustrating. The screen locks up for about 30 seconds. Eventually, the driver gets killed and restarted, closing the game with it, but I usually have to reboot my machine afterwards anyway because it breaks the sound and my multiple monitor setup. My PSU is more than sufficient, 850W, and temps are normal. From everything I can tell, it's an AMD driver issue. I'm using the DirectX 12 renderer (the DX11 and Vulkan renderers result in worse performance and sometimes significant graphical glitches).
This has been happening for months, and I've submitted crash reports via the driver's utility every time it's happened. It's at the point I'm about to sell this card and buy Nvidia instead, because Path of Exile is my primary game and I can't be having my system crash randomly while playing it.