[Reason077]

AirPods, including AirPods Max, support Bluetooth 5.0 and do work with non-Apple devices.

[Mehvix]

I must've misinterpreted > AirPods Max require Apple devices running iOS 14.3 or later, iPadOS 14.3 or later, macOS Big Sur 11.1 or later, watchOS 7.2 or later, or tvOS 14.3 or later.

[Reason077]

It also says: "AirPods Max can be used as Bluetooth headphones with Apple devices using earlier software and with non-Apple devices, but functionality is limited."