I've heard this law mentioned before, but interestingly in that same Wikipedia article there are several studies mentioned that seemed to conclude it's not true at all:

A 2016 study of a sample of academic journals (not news publications) that set out to test Betteridge's law and Hinchliffe's rule (see below) found that few titles were posed as questions and of those that were questions, few were yes/no questions and they were more often answered "yes" in the body of the article rather than "no".

A 2018 study of 2,585 articles in four academic journals in the field of ecology similarly found that very few titles were posed as questions at all, with 1.82 percent being wh-questions and 2.15 percent being yes/no questions. Of the yes/no questions, 44 percent were answered "yes", 34 percent "maybe", and only 22 percent were answered "no".

In 2015, a study of 26,000 articles from 13 news sites on the World Wide Web, conducted by a data scientist and published on his blog, found that the majority (54 percent) were yes/no questions, which divided into 20 percent "yes" answers, 17 percent "no" answers and 16 percent whose answers he could not determine.

I do this at work, because people gloss over details on really IMO emails that can affect them.

But I say exactly what it is.

Like in Slack, I go "Woah number 6 really said that our healthcare will now be decided by a d20". And then watch the conversation unravel.

Every time I've seen people use this the thing that happens at the end should've been the entire video and/or wasn't even funny/worth watching.