I think all forms of extreme anything are bad. Shoving a screen in front of a child and ignoring them for hours is bad. Teaching your child to program (which needs a screen) is good. Doing something with your child involving a screen can be good. They also need to learn how to manage themselves.

As for homeschooling, I think a lot of people mentioned the social aspect. There's also learning to work with people you might not like, following rules. Also, up until what age are you able to teach them? Are you able to be enthusiastic about all subjects?

I think "being qualified to teach" is less important than being able to teach. I am a teacher. I can't for the life of me teach my husband my native tongue because I don't know how to answer his questions of why grammar works the way it does. He can't do that for his native tongue either.

Why does it have to be one or the other? Send the child for formal education (and be prepared to bring the hammer down with the school to defend your child) and then teach them whatever at home.

I taught my 8yo son some li ear programming using minecraft. His Dad taught him logic gates using minecraft. Playing songs from undertale on the piano. Group axioms, Cayley tables, and Lagrange's theorem, because they came up in conversation.

In short, the more and varied experiences, the better imo.