Oh wow, that is a big change! Even though I know Microsoft influenced and pushed the UEFI standard, my first macbook was my first introduction to EFI booting (since I had used legacy BIOS on my PCs up until college), so I've always associated it with Apple hardware.
Some snarky people would even say that modern Macs are in fact iPhones, just with a different form factor.
The unification of the operating systems for both devices continues with every macOS release. (And that's not only about the unification of the naming scheme…)
