I'm pretty sure compliance rate with the policies isn't great. People who like being in the office down to people with small WFH preference just go along. Prime with stronger WFH preference probably simply ignore the policy.
If management had enough leverage to push them back in, they weren't going to escape
That’s because people just leave.
What happens when all the other companies are implementing the same policy...
This is why individual action is significantly weaker than collective bargaining.