We all got a taste of the flexibility the C-suite has always exercised, and they don't like that. Now that the job market has turned enough they are trying to take it away as hard & fast as possible.

It would take a serious downturn to kill it completely and even then I doubt it. While you don't see a lot of arcade games in offices anymore, they didn't get people back to wearing suits...

As soon as you get into competition for talent, in-office 2~3-day vs 4-day, or hybrid vs full in-office will quickly become a selling point again.