I'm still having the issue
The realloc setting is
128mb (I checked it under Windows, didn't saw the option in my BIOS). I have an NVIDIA graphic card, but it was already disabled with
-wegnoegpu
The only line I kept under
PciRoot(0x0)/Pci(0x2,0x0) is
AAPL,ig-platform-id=00009B3E
I also figured that I've left AudioDevice=
PciRoot(0x0)/Pci(0x1b,0x0), so I corrected it.
I checked my config.plist with slowgeek's sanity checker, here's the result if it can help :
https://opencore.slowgeek.com/?file=laptopcoffeelakeplus060DVM9zr&rs=laptopcoffeelakeplus060
I also join the last version of my EFI folder