vnuevo had a similar issue, and it was with HDMI:
https://community.amd.com/message/2982447?commentID=2982447#comment-2982447
5700 XTs can output 4K 60fps over HDMI, so as long as the port on the monitor can handle it you should be ok
I have black screen on driver installation no matter wich one sapphire 5500 xt 4GB, I will return it with refund just 2 weeks with it.
I'm on Win 10 version 2004 with no major issues. My only problem is the cashing of DX12 in MHW. Other games are okay. No issues on other uses of computer.
Problems are different for every 5700XT and driver. This sucks. I'm glad I found some solutions for my setup.