I know we have a tendency to notice specifically the aspects of Wikipedia that consolidate the worldview of the State Department, but it seems there's also some very active Catholic editing to discredit any critique of any popes. I fell into a wild Wikipedia rabbit hole last year on this topic, and the more "Talk" pages I read and edits I followed I now think there's some Vatican deep state that has a small but dedicated Wikipedia army lol.
Anyways my favourite of the thing you're looking for is that the most closely guarded claim I've seen on Wikipedia is on the Working Time page: "Standard working hours of countries worldwide are around 40 to 44 hours per week (but not everywhere: from 35 hours per week in France[4] to up to 105 hours per week in North Korean labor camps)]. Source? A defector who left Korea 30 years ago who said "Those accommodated are mobilized for forced labor from 5:00am to 7:00pm in winter, and till 8:00pm in summer."
Saints, too. The Padre Pio page is hilariously written in two voices, one that believes all supernatural phenomena, and one that keeps repeating that he bought carbolic acid one town over so as to fake his stigmata.