Apple’s always done some unique things with WiFi/Bluetooth. Macs have long been able to keep Apple-branded bluetooth keyboards and mice usable even before the OS initializes for example, and if you use one of a few Broadcom chipset BT/Wifi cards that were used in real Macs in a hackintosh, that capability extends to those too. It feels weird being able to navigate BIOS/UEFI with a Bluetooth keyboard.