I'm not sure if the number was for Facebook specifically or all Meta apps, but they did quote a number of around $70 revenue per year per US user a while ago. (with (much) lower numbers in other parts of the world)
These numbers are actually kinda interesting, in that they're based on user location, not advertiser. So basically all global companies target the US first because it's a big market with consistent regulations and mostly one language (compare to the EU where you'd need English/German/French/Spanish/Polish and still would miss a lot).
So, those numbers reflect a capital inflow to the US market rather than (as many people think) absurdly high conversion US users.
Meta stopped reporting user numbers/CPMs by geography after the market freaked out when user growth plateaued in the US (because they'd acquired basically everyone).
These numbers are actually kinda interesting, in that they're based on user location, not advertiser. So basically all global companies target the US first because it's a big market with consistent regulations and mostly one language (compare to the EU where you'd need English/German/French/Spanish/Polish and still would miss a lot).
So, those numbers reflect a capital inflow to the US market rather than (as many people think) absurdly high conversion US users.
Meta stopped reporting user numbers/CPMs by geography after the market freaked out when user growth plateaued in the US (because they'd acquired basically everyone).