One could argue that CS undergraduate degrees are perfectly suited for this purpose. FAANG & Co don't seem to care for that. You've successfully passed a few dozen exams at MIT or Stanford? Well, let's make the reasonable assumption that you have no clue about algorithms and data structures and start with our third whiteboarding session, that should be a way better proxy for your knowledge.

That's called college, and experience has shown that the people who have the certificate aren't guaranteed to know how to write a fizzbuzz.

I think that’ll never happen because the incentives of the cert granting institution and the company hiring will never be aligned (or aligned enough to matter).

Sounds like a neat segment for Triplebyte to move to- or for a competitor to capitalize upon.