Black screen half way through initial install of Catalina from USB

I am following Caseys Gigabyte Z490 vision D build and have run into a problem. I made the usb installer correctly I think but when I choose install mac os from OpenCore , I get the apple symbol and progress bar very slowly and then just goes to black screen. I am using IGPU. As I was following the Bios settings , there was one that was unavailable to me . See below.

Also- I started this build to replace my old build as I needed Thunderbolt going forward. I also wondered about the...

Tonymacx86