Doesn't FAANG, by definition, not include Microsoft?
I believe FAANG is a term coming from the financial world about high-performing tech stocks in the '10s, and thus included Netflix but dropped Microsoft as it was doing badly in that time period.
Or maybe it’s because MS is seen as uncool. A bit like IBM.
I've also seen GANDALF (google amazon netflix dropbox amazon linkedin facebook), but dropbox probably doesn't belong in that list. There's plenty of backronyms, but one ends up just hitting critical mass.