[gumby]

Also if this is used for business and all participants are employees and/or in single-party states/jurisdictions then there could be anyway for a company to indicate it has the consent of all parties.

And recorded transcription plus automatic realtime transcription of non-authorizing parties might embarrass them into allowing it. I've become persuaded over the last decade that two party consent no longer makes sense (though that means the law should change, not that there should be civil disobedience)

[nagrom42]

I agree with your second point completely and a lot of big tech companies already passively record your conversations.

Given Alexa as an example, I might have signed away my rights of all my conversations to Alexa when I first signed up for the app and the product. But Alexa would never be able to prevent other users who are not the owner from using it. I wonder how they deal with this legal grey area.