Alex, although GPU usage is still low on my end on my 5700xt, make sure to use 20.4.2 driver from AMD. Also, make sure to uninstall the current driver using DDU, in safe mode. Sometime windows will install a driver if you are connected to the internet, so when you uninstall, disconnect or unplug your internet before you restart to reinstall the 20.4.2 driver. I am getting better FPS everywhere and 200+ FPS running through the fields next to VMC.

20.4.2 is the best driver so far for DayZ on 5700 series drivers. I too have installed and uninstalled many drivers and hands down 20.4.2 is the most playable in DayZ. GPU usage is still all over the place and FPS, but it is the most playable. From what I read, AMD has said that this is a DayZ issue and not a driver issue. Since the new 6000 series GPUs have the same issue, I am believing AMD.

Yes, this has started about 3-4 days for me. I also freeze when I try to exit

I have the exact same problem, so does my other friend.