Not hyperbole. Direct quote and confirmation from FAANG recruiter. Maybe even after confirmation they were misinformed. Or maybe that was the suggested practice goal rather than what would actually happen in the interview.
Definitely hyperbole. I dabbled in competitive programming many years ago in high school. There's are only a handful of people I know that might be able to correctly complete 3 leetcode hard questions within one hour (they're the ones that end up in ICPC for example). There's no way the bar is actually that high, otherwise they wouldn't be able to recruit many thousands of people every year.
That recruiter shouldn't have said that as its probably caused lots of people who aren't inadequate to feel like they are.
Yes, most places it’ll be one question with follow ons related to it if you do well.
Reportedly Facebook asks two mediums in 45 minutes.