No this article isn’t good. The author, Richard Lynn, is a self declared racist. I’m not even making an accusation, he has said that about himself.

IQ is a bullshit construct, and it especially was never designed for population level studies. His idea of genotypic IQ is then an added layer of quackery because there is no gene that he is testing for he is just assuming that you get the average of the IQ of your parents. That would be like assigning a “genotypic speed” to a baby based on the average 100 meter dash of its parents. Except that would be more scientific because the time of a 100 meter dash is at least measurable and real, unlike IQ.