Why is this companies' faults? What can they really do anwyays besides giving a small budget to situate oneself?

All homes - should - begin to have offices anyway as people realize that physically going in to work isn't necessary to be productive.

If remote work became a norm, I'd expect housing market in large cities to sink dramatically. Why would one move e.g. to New York if their hometown provided same same job opportunities?

Why do you need an extra room?

Laptops can go anywhere, and my living room is empty until ~4pm when my kids get home. I've been remote for going on 5 years now and routinely take my work laptop to the kitchen or living room (though I'll concede I need a quiet room for some calls/tasks that involve PII).