There's such a disconnect between the discussion on line about this and my experience in the real world.
I work in tech and it's probably at least partially situational, but everyone in my office that I talk to about this agrees that working in office is more productive. Everyone wants the flexibility to work from home, and my company is still hybrid, but it's universally agreed that the office is better. Granted I know some people left after we went hybrid from full wfh, and I'm sure some of those who left would be in disagreement.
But for instance, I'm a senior engineer and the juniors often ask for help from me multiple times during the day...if we're both in the office. If one or both of us is home, I rarely hear from them. I don't see how this isn't a clear indication of lost productivity and learning from them.
But when you see this discussion online, the people arguing that WFH is just as good or better drown out the other voices.
Don't get me wrong, I understand that commuting sucks and for the employees who is better, and I hope it stays that way. But I struggle to believe that from a business productivity perspective it's better to be fully remote.
Previously our office was 2/3 WFH/office hybrid, which everyone interpreted as "2 days from home regardless of how long week was." They recently put their foot down and said it's actually 3 days in the office no matter how long the week is...but also all managers have to be in the office 5 days.
So my personal experience contradicts your claim. Do you have any evidence to back it up?