All of these are just half-assed, incomplete attempts to solve problems that were already solved by private offices. You don't have to worry about a sick person sitting 3 feet away from you if you have a private office. You don't need to wear a mask sitting at your desk all day if you have a private office. You don't need specialized "focus rooms" if you have private offices. You don't need specialized break-out room…
Google employs in some of the most expensive real-estate in the world. It's hard and takes years to build more, larger office buildings.