I think this speculative take is so popular because it gets a rise out of people, but it’s much more likely that corporate real estate is just a real big asset on corporate balance sheets, and if everyone panic sells their offices at the same time that market will crash leaving corporations to hold the bag.
I know we want to believe that every senior manager on the planet is fragile masochist who needs to see their employees to feel big and strong and in control, but it’s much more likely that this is related to finances.