Earlier quoted context omitted.
That's not a FAANG though.
FAANG is just a buzzword acronym, a hook to pull in investors. LinkedIn is Microsoft, which should also be included given it's scale. It should be FAMANG.
Also, the FAANG expression didn't start around scale, if that was the case netflix wouldn't have been included as early as the expression was coined. The expression was about developer compensation. That seems to have changed recently(-ish) though and now the expression is more like "unicorn" instead of just the specific companies that make up the acronym.