We once had an intern who took screenshots of an internal presentation and posted them on the internet to brag about how cool his internship was.
When we did his exit interview he admitted he just wasn’t thinking. He did it all in a couple minutes while in the meeting. Something like this would have stopped him in the process and made him remember that the content was sensitive.
Don’t underestimate the diversity of the people watching zoom meetings. It’s not all engineers with elaborate screen capture setups prepared for the express purpose of recording meetings.