(I linked to the Yahoo version of the article because it’s not paywalled. Original WaPo article is here.)
Since its public launch in late 2022, [OpenAI] promoted [ChatGPT] as a “revolutionary” productivity tool transforming the future of work. But, in an analysis of 47,000 ChatGPT conversations, The Washington Post found that users are overwhelmingly turning to the chatbot for advice and companionship, not productivity tasks.



They were being shared by default at first and had to opt out of sharing when many were archived. Unsure if it was true of these particular ones though.
You always had to click the share button. What they changed is if they show up on Google.