I’ve gone through the whole site, and it does give little or no rationale for the supposed facts and figures they brought up; if there’s a citation, it’s questionable, and good God, people are still falling for all the bullshit over there.

Shit like this: https://www.reddit.com/r/Philippines/comments/14frh19/fellow_filipinos_whats_your_opinion_on_this/

Editorially, we cannot find evidence of any overt political opinions being offered. This is a straight-up data-driven website with minimal bias. However, they sometimes utilize controversial sources such as data from Richard Lynn, who calculated IQ by country. His study has been accused of being racially biased.

https://mediabiasfactcheck.com/world-population-review/

I strongly recommend using original sources for citing information, such as the actual World Health Organization site, and the CIA World Factbook, which contains some at-a-glance figures per country.