I have both once failed fizzbuzz in an interview and gotten offers from FAANG companies (different interviews, obviously). At the time I failed the fizzbuzz, I even knew it was a fizzbuzz question i.e. I'd read Jeff Atwood or Joel Spolsky's blogpost introducing the concept. I just got very very nervous. I work at Google now.

There's not much to say really. I think people for like me who get very nervous at live coding interviews, the variation between best and worst performance can be massive.