Maybe. I've never hired for FAANGs but from the other side of the interview table, I'd much sooner hire someone overflowing with energy and enthusiasm for homebrew game consoles or hacking a TI-83 calculator, than someone who has practiced the right exercises but has no passion for the work, doesn't remember when they stopped loving tech, and would have pursued a different major if the big bucks were elsewhere.

It's not hard to tell.