Aside from workday access to family, I think you’re just describing regular dedicated private offices per each individual knowledge worker, which superior on all fronts except commute time (yes, superior even on a real estate cost basis).

Private offices for all allow social distancing at the office if needed, ability to tweak your surroundings to suit your needs when doing task work, and easy access to share physical space with a team when needed.

I worry we are losing sight of how disastrous co-working spaces and all open-plan designs are.

Fully remote is better than open plan or coworking for sure, but none of these options come close to just coming to our senses and bringing back private offices with doors for individuals.