In a past job, I saw a LOT of former FAANG candidates as a hiring manager (SRE @ hedge fund) at a past job.
In my experience, FAANG folks have a somewhat barbell distribution where it's either:
A. "This person is incredibly talented, well spoken and will probably find a job anywhere"
B. "This person spent 5 years at a FAANG and worked on basically two projects that would have taken <6 months at a hedge fund"
There doesn't really seem to be an in between.
I also distinctly remember learning that Google had 100K+ employees. To me, that is moving into "big bank" size territory and it's clearly impossible for EVERYONE who is former Google to be amazing.