Why? Everyone calls Google Google. Alphabet is like a holding company.

I'd wager if you scraped most news publications you'd see Meta used across the board, Google used in most cases and a few cases where the writer uses "Alphabet, Google's parent company..." (https://thehill.com/policy/technology/3503534-activists-work...) which IMHO just proves the point I'm trying to make

For the perfect exhibit, look no further than this Tech Crunch article with the headline "Meta and Google's Gradient..." https://techcrunch.com/2022/05/26/meta-and-google-gradient-i...

In french we say GAFAM, I naively though it was the same in the US. Gasp, I'm still too focused on my culture =D