I think there is a fallacy “if I am more productive at home than therefore all must be more productive at home”. Consider though that the most sophisticated companies in the world when it comes to analyzing human behavior are asking for employees to return to work, do you really think they would do this if this meant a productivity decrease. I’m suggesting the harsh reality is that while you may be more productive at home the majority of your colleagues are not and they unfortunately have ruined it for everybody. I don’t think this has anything to do with sunk office space costs, it’s about bottom line productivity.
Work is not only about what the company wants but also about what the employee needs. I don't see much difference between the ability to work from home and the ability to avoid working on weekends; the later is an acquired rights in many places, the former can come over time.
