I keep getting the same unsolicited inquiries from Amazon internal for roles that aren't a great fit in a city I don't live in, respond accordingly and never get any type of response again, until the next internal recruiter (with the average tenure of < 12 months). This is no different from the second type of recruiter you highlight.
Amazon is hemorrhaging talent right now so that might be kind of a special case. Or it might be FAANG? Admittedly I've only worked in companies nobody's ever heard of so maybe it's different at those smaller places that only hire 15-20 developers at an absolute max (and usually like 3-5).
