> WHY they use Apple hardware

Because Windows' UX is trash? Anyone with leverage over their employer can and should request a Mac. And in a hot market, developers/designers did have that leverage (maybe they still do) and so did get their Macs as requested.

Only office drones who don't have the leverage to ask for anything better or don't know something better exists are stuck with Windows. Everyone else will go Mac or Linux.

Which is why you see Windows becoming so shit, because none of the culprits actually use it day-to-day. Microsoft should've enforced a hard rule about dogfooding their own product back in the Windows 7 days when the OS was still usable. I'm not sure they could get away with it now without a massive revolt and/or productivity stopping dead in its tracks.