If they would stop all doing the exact same hand pose it might help. Feels like watching a cult. Been this way for years too.
If you didn’t notice it before, you’ll definitely notice it now.
Apple presenters are coached on how to speak, how to stand/move, what to do with their hands, etc.
I can understand how it might seem culty, but it's in the service of clear communication to a global audience. Anyone who represents a company to important customers and/or the public goes through similar media training.
I hate it too. But watching untrained people nervously fidget with their hands or stand like stiffs has its own cringe.
A few of the keynote people kinda forgot how to walk normally on camera. It happens to me.