I have thought about this a lot, and I have no idea. I work for an "AI-first" company, and we're kind of required to use AI stuff as often as we can, so I make very liberal use of Codex, but I've been shielded from the interview process thus far.

I think I would still kind of ask the same questions, though maybe a bit more conceptual. Like, for example, I might see if I could get someone to explain how to build something, and then ask them about data structures that might be useful (e.g. removing a lock by making an append-only structure). I find that Codex will generally generate something that "works" but without an understanding data structures and algorithms, its implementation will still be somewhat sub-optimal, meaning that understanding the fundamentals has value, at least for now.