I have an enterprise account and they added this button today. Guess what used to be there? The profile image where you could so conveniently swipe up or down to switch between gmail accounts. This is the kind of UI garbage that makes you want to move your entire company to another service just because you can.
I’m pretty sure kneading is a way they mark territory and express feeling safe, glad to be corrected.
I think it’s a behavior from nursing