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.
Yes, but not necessarily in a way that is correlated with higher educational performance for their children.
> what does that say about regular homeschooling that is still practiced?
is still "not much".
Probably the homeschoolers on this site largely fall into the former category. The stories you hear from a broader cross section online of home-schooled kids skew heavily toward the latter.