@AUTH-IT-Center I do believe snponly would be the recommended, rather than iPXE’s driver.
The developers at iPXE wrote the driver on their own (of course using documentation and stuff, but for all intents/purposes it is still a handrolled driver) so anything is possible.
We shipped the native iPXE 2.0.0 mainly because of the feature it allows with actual Secureboot capabilities and instead of embedding everyfile with a custom script, a more dynamic approach for when iPXE releases new version we can upgrade more easily.
For what it’s worth, I would almost want more people to default to snponly.efi (or secureboot/snponly-shimx64.efi if using/wanting secureboot after enrolling your machines of course) because this is supposed to be using the generic driver for EFI boot protocols on the NIC rather then attempting to discover the NIC using a driver loaded.