> If we are attributing these results to the the mass homeschooling experiment that was remote learning, what does that say about regular homeschooling that is still practiced?

Probably not much? It seems pretty reasonable to expect that people that self-select to homeschool their children are going to diverge from the general population (I.e., people en masse that had no desire nor means to do it).

The story’s probably much the same for people working from home. People that sought it out and had established routines before the pandemic probably handled it a heck of a lot better than the general population that was forced into it with little to no prep time and a lack of equipment and support.