I've always found it amusing that FAANG pedigree is considered a plus for startup founders when the skill set is not only different but sometimes detrimental.
No, the VCs tell the founder/CEO to hire people who've done it before to help pay down the risks of unknown unknowns (which are real – this advice is overly simplistic but isn't conceptually wrong). This translates into them hiring from FAANGs if they take the advice semi-literally.
Rather: FAANG employees are pushed into startups by VCs.