All bezos did was explicitly make the homework a required part of calling a meeting. Correctly putting the majority of the prep work on the person calling the meeting to begin with.

Then they simply moved the implied 20-30 minute prep time everyone should be doing anyways into the meeting block itself.

If a meeting isn’t important enough to prep materials or an agenda for the meeting should be canceled.

My theory is all standing scheduled regular meetings are basically useless. If I run a startup again they will be outright banned for my org. Meetings about a specific topic or issue are different.