[spijdar]

Presumably they use it internally. IIRC there are drivers for VirtIO devices in modern MacOS, implying they use KVM/QEMU for something.

[smoldesu]

It's also used when you load into the recovery partition, IIRC. It may be redundant nowadays, but it's a nice redundancy to have for sure.

[ace2358]

Makes sense to have that working if there are gpu hardware issues… which did happen for many years