I work for an extremely famous hospital in a small city in Minnesota, and we've gone 100% remote forever in large part because then the hospital doesn't have to pay for heating/lighting/internet/etc for all of the buildings that used to be full of us. Eventually they'll probably sell the offices entirely. I'm not sure why Google thinks it's economically worth it to have people come back in, I'd imagine the savings must be even more immense for them than it is for us.