~possible but I've read a research that the most impact for children is simply more outdoor time. There's a pdf of a Piano Tuner Association recommending the use of reading glasses when working in close distance.

I believe there should be wider recommendation to strongly discourage using myopia glasses for computer/reading. I've been wearing it since I was 7 (> 15 years) with a lot of reading, phone and computer usage, no ~big changes in my myopia but not better too. (Disclaimer, my glasses have always been pretty weak (<2))

I've also mistakenly overcorrected my latest pair, so I'll experiment with a astigmatism-only pair to see how much I need correction.

Not quite the same, but orthokeratology (Ortho-K) is a thing. Specifically for children.

https://www.eyeconcepts.com.au/ortho-k

probably not a good idea because it would introduce more problems related to convergence and accommodation, better to just let the eyes work naturally and keep better habits.