I teach at a University. Our grads in CS and engineering certainly do flow directly to jobs. But not FAANG except a few. Either way though, and despite what college-dropout CEO's may think, our universities actually do teach our students what they need to know for their job description. If you are curious how well they know the topic, check their grades. We tested them thoroughally already. Normal human interviews consist of chats with the candidate to discuss projects they worked on and their interests.

In the defense industry they can't hire internationals. Not coincidentally, this how interviews at those companies mostly go. And they plan for a lot of training of new hires to boot. Needing a hire to be productive their first day is a necessity for startups, not massive companies like Apple/Amazon/Intel/etc. They're just being cheap.