This comes from an Aussie perspective. Unfortunately, Bluebeard2011 is the guy who remembers World War III and who has lost children because of the effect. Also, in his reality 9 billion people lived on Earth.
From the Youtube description: i’m a dimensional traveller and I want to know where my missing children are and the other missing 2 billion people have gone too
Title: mandela effect what is it really possible answers (YT link) Uploaded by Bluebeard 2011.