Twitter had been moving toward a "remote first" philosophy, and most of these teams were already geolocated. If you came into the office there was a good chance you'd spend most of the day in a conference room, if you could find one.
So more and more people who were assigned to these work locations were just working from home and "never going back."
I actually got in trouble with my manager, who was located in San Francisco, for not "badging in" enough. I sent her this.