[JohnFen]

According to Pew research, Facebook usage in the US has been flat since 2016, neither gaining nor losing overall.

However, the age breakdown of those users has changed a lot. Facebook has absolutely hemorrhaged users younger than about 45. The majority of American FB users are in the 46-76 year old range now, with 68% of US FB users aged 50 or older.

In the US, anyway, Facebook is for old farts and businesses.

[Marsymars]

Conveniently for Facebook, old farts and businesses have most of the money in the US.