When does Gen Alpha start?

I'd like to know what you guys think. Many of the medias say 2010 or 2012. Basing my research on popular sociology sites, Pew Research Center says Gen Z is 1997-2012, but McCrindle says otherwise, 1995-2009. So it kinda overlaps.

I am 14 years old, so I can't say that much, but I honestly feel more like a Z, based on how Generation Alpha has grown and is growing. I don't share the same things a Gen Alpha has, since I don't suffer from any neurodevelopmental disorder like ADHD, or physical conditions like obesity, and neither my childhood was spent on phone screens. I'd like to know what you guys think.