Wouldn't it be more accurate to say that on-site work was just a temporary regression? Back in the time where almost everyone worked on a farm, the farm was also your home, and mirrors a lot of what remote workers experience again now.

Not really. Peasants who owned their farm during the pre-industrial era were rare. The bulk of "work from home" then were household chores - which meant e.g. house-wifes spinning wool into yarn or sewing clothes.

Yes.