EFI or tips for AORUS Z490 MASTER and a i9 10850k? My attempts have driven me to drink.

I’m trying to get the right OpenCore settings and at the same time, resolve the issue with only using the iGPU. Been trying a Big Sur build but at this point, I’m thinking of trying Success' href='/2020/12/install-macos-catalina-on-supported-pc.html'>Catalina if it means an easier ride.