While non-optimal home environment can screw up work (too small, too crowded, too distracted), I wonder what percentage of the people who can’t focus doing wfh can’t focus in the office environment either. Lots of distractions there as well, often of a more interesting kind.

If your job required f2f interactions then yeah, do it f2f. If, however, your jobs requires concentration or interaction with multiple sites do it where such concentration is possible. And if you make office work the goal, make offices.

Edit: to make a positive contribution to the discussion, I’ve found that having a specific place to work separate from not-work at home helps maintain a separation in my head. Not everybody can do this but if you can have such a separation it might help with focus/off time.

It's the opposite for me, more focus, less food. I was already dressing casual so that wasn't an issue. No commute is definitely a plus. I think there is an element of creativity that isn't being catered to in most offices. Writing code, or designing has comparable creative efforts to an author, film maker, etc., and working from home is allowing people to create this environment.