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It's exactly how Apple operates. The last Apple device with Firewire was produced in 2012, though it was sold for several more years. MacOS 13 (2022) dropped the Firewire CoreAudio driver (as well as other, more niche support for Firewire). So... exactly 10 years. If you're going to put me in a bucket, I'd be in the "Apple Hater" bucket, but I honestly think that the way that they do this is fine. It would have been…
You’re right Apple has a playbook of changing port types every few years, but there are adaptors available. The devices themselves still work, just that Apple knows they can use this one trick to encourage some customers to upgrade. With wireless devices, protocol changes would brick the device, so they’d be less likely to do it so quickly. As far as I know, Apple haven’t announced any plans to deprecate the original…
Again, it had a long run, I'm not upset that they "only" supported it for 10 years... but let's be very clear, the devices don't work. Also, this is them removing support for a protocol that is part of the base MacOS, so it's exactly like what will eventually happen when Apple stops supporting the original Airpods protocols.
I don't think that's any time soon, and if you're in the Apple ecosystem, go ham... let's just be very clear about the comparisons here.