If you installed AMD's latest 26.5.1, typically crap AMD coded driver, you should DDU it and then reinstall using the older, more stable 26.3.1 driver. This solved a similar issue for another user on the steam forum.
Download the driver for your GPU WITHOUT installing it:
https://www.amd.com/en/resources/support-articles/release-notes/RN-RAD-WIN-26-3-1.html#Downloads
Download the latest version of DDU https://www.guru3d.com/download/display-driver-uninstaller-download/ or https://www.wagnardsoft.com/display-driver-uninstaller-ddu
Go into Safe mode by keeping SHIFT key pressed on your keyboard while clicking on the reboot button on windows, then navigate in this order: Troubleshoot -> Advanced options -> Startup Settings -> Restart. Then press 4 to go into safe mode without internet
Now that you are in Safe mode open DDU, choose GPU in the top right and then the brand of your GPU. Once you are done select "Clean and Restart"
Before the computer restarts disconnect the ethernet cable from your computer, if you are using Wi-Fi, it's best to turn off your router so that the computer doesn't connect to internet at boot. (If it does connect It will install Microsoft's video drivers automatically and you have to start over).
Now that you are in Normal mode without Internet and video drivers you have to go to the previously downloaded .exe drivers and install them, once it finishes reboot the computer and you are good to go.
This is a temporary fix. They should investigate what's happening with their game on AMD.
