What could be possible, would be maybe send tiny bits. For example, a device could categorize some places or times, detect out of pattern behaviours and just record a couple of seconds here and there, then send it to the server when requesting something else to avoid being suspicious. Or just pretend it's a "false positive" or whatever and say "sorry, I didn't get that."
I don't think they're listening to everything, but they could technically get something if they wanted to target you.
Shit, that was tough, I hope you're fine now. Accepting help is pretty difficult sometimes.