Joel Spolesky has made this very point many times in the past: "Private offices with doors that close were absolutely required and not open to negotiation." I work on a Data Sci team that moved to an open floor plan in 2018. What happened? Anyone who needed to work intensively on a project would work from home instead of in the office.
If all of this results in an office layout revolution that includes many individual offices opening into shared team spaces, I am 100% here for it.
Layouts with many closed offices would cost far more to build, and take up more square footage to host the same number of employees.
At a time where savvy businesses have dropped their commercial leases / gone full remote, and the more conservative / less accepting of change ones are left holding the bag, I would not expect anyone to make big investments into office space.