Thanks, that's the guide I've been following. But I'm having trouble getting UHD 630 iGPU to work - have yet to receive the Vega GPU for this build. I'm looking at the Framebuffer fix right now.
At the moment, I have the GPU with 4MB of memory and no audio. As far as I noticed, these are the only things missing.
Since the build is so similar, I was hoping to use the finished EFI.