>>518684901
Intelligence is 80% heritable, about the same as height. The study linked to in your psypost article only considers variance with the 20%.
Meanwhile, DNA based IQ tests still exist.
https://www.sciencedirect.com/science/article/abs/pii/S0160289621000143
Here is a company that offers DNA based IQ testing and claims 80% accuracy.
https://www.iqfromdna.com/
>inb4 but how can this be true if it hurts my fweelings? Don't you know that the brain is a magical organ that is unaffected by genes?