UPDATE:
1. Clean reinstall - boot info safe mode, remove GPU drivers with DDU.
2. Reboot with Display Port as source
3. Install AMD drivers
4. Computer crashes after about a minute of normal behavior on Display Port, had to reboot the pc and change to HDMI - works perfectly. If I try to switch back to DP the first behavior repeats.
Free synch disabled in driver settings, HW acceleration disabled in browser settings, VRR disabled in Windows Graphics.
AMD, my brothers in Christ...pliz fix.
My card only has 1 HDMI and I need that for my TV, let me use my Display Ports.