Your devices recording you is something that doesn't happen.

There's no evidence of that happening.

What's your basis for this claim? I mean that might be the case, but is there some reason you're able to have so much certainty?

I understand the "bandwidth" argument, and the "they don't even need that" argument (I make a similar case in a comment to another reply), but neither of those support the idea that it can't be happening.

Getting around the bandwidth problem isn't that crazy: Low bitrate encodings (cause the audio doesn't need to be human-comprehensible) and edge compute (i.e. doing some work on the device before sending anything) could mitigate this significantly, so it's hardly impossible.

I think we mostly agree, I just wouldn't apply that degree of certainty. But if you're really confident that it's definitely not happening because it's definitely not possible, maybe you know something I don't?