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Mark Zuckerberg Is Selflessly Building Yet Another Horrible Product Nobody Asked For
(tech.yahoo.com)
This is a most excellent place for technology news and articles.
That data says about half the user base is not what you say it is.
Largest share 25-34, 18-24 in very close third place, making 18-34 about 42%. Also, general usage still expected to grow (somehow), so it's not just old people staying there forever.
34 in 2025 is millenial but not even older millenial.