

The article states in the first paragraph that there is a significant controversy on this topic in the scientific community. It’s clearly more complicated than what a correlation coefficient could prove. Moreover, intelligence is also correlated with a good educational environment, which is what they are trying to rob from the people.
Honestly, these are the ones that matter. From those, you can choose depending on what type of work are you planning to do with your computer.
For servers: Red Hat (but it’s paid), OpenSUSE, Debian, FreeBSD
Desktop (very new hardware): Arch, Fedora
Desktop (other hardware): Mint, Ubuntu, Debian
Hardcore, embedded, very specific needs: Gentoo, Slackware, Arch