Misunderstanding, I know how create boot media. Problem is when I copy Edhawk or my own EFI folder into this USB stick EFI partition, I can see Install Big Sur option in OC picker and start the boot (but it crashes). But if I use your EFI folder, it gives only boot MacOS and Recovery option, not Install...
No, GT730 goes exactly as far as K4200 - PCI configuration begins with my own EFI, to date/timestamp with Edhawk one and to unknown (can't read last message) with yours.
Just for the hell of it, to test hardware, I ran some stress tests in Windows and compiled kernel in Linux. All OK.