It was Cramer back in 2013 who coined the term. It was a term for stocks, although on HN and around the engineer-verse I always took it to mean "big tech" companies that pay really well.
There are people who periodically propose this - so you could say your observation has been seconded. In fact there's already an acronym for that (which I've heard once or twice), FAMGA.
Folks over at r/Wallstreetbets use the term FAGMAN. I'm not sure if that's politically correct!