Our devices are always listening, if you have them set up to listen for hail words like "Siri" or "Hey Google," so I think the Overton window on listening already shifted about 10 years ago. The device actually recording/transcribing what it hears is newer, but you're right that it's becoming more and more normalized. With Granola, I think most people assume that any video call is being transcribed, even if there's no indication in the meeting.
Whatever side you come down on, privacy doesn't stand a chance against a small amount of convenience.
It depends what you mean by ‘listening’. If you look at how this actually works - it’s basically only ever looking for a certain waveform
‘Listening’ sort of implies intelligence is paying attention to what is said. It’s more ‘hearing’ than ‘listening’
There are documents on how these activation words work