Over the course of this thread your argument went from "It's not technically possible" and "they will have to train their own models" to "I don't want to buy certain devices".

No I said it wasn’t technically possible on any cheap headphones because while the processing was done on the phone, the audio capture was done by the outside microphones on Apple headphones that have ANC and even the older ones of those required Apple to update the firmware on its own AirPods working in concert.

This is no different than Google not supporting just any old headphones.

Then the argument came that Apple’s AirPods are “overpriced” even though the cheapest AirPods that support it - AirPods 4 with ANC are in the same price range as Google’s and cheaper than the worse sounding and more expensive Sony Earbuds.