OK buddy tells me to double check and I have PCIE 4 enabled on the mobo lol. And AFAICT this isnt a beta bios. Id read that it didnt have it but there it is... Kinda slapping myself for not double checking.
Looks like GB will let us toy with this once we get a PCIE4 peripheral. I hope its not an empty placeholder in the UEFI. Awesome!