I've never asked google search to write my emails, presentations, or feature proposals. Nor to summarize company documents like reports, memos and the like.
Been a while since I was at Apple. But we never used Google services and any third party tools we did use were vetted by a cross functional team from Security, Data Governance etc.
This idea that they would just allow sensitive data to be given to competitors in an unmanaged way is ridiculous. That sort of thing doesn't happen at any enterprise company let alone one of the most secretive in the industry.
