Jeff Dean (circa 1998) would pass the resume screen anywhere and I'm pretty sure he'd do well on a coding challenge.
I'd be extremely surprised if Jeff Dean (at any point in his employment) would fail a SWE interview loop at Google. The Google interview is heavily based on data structures and algorithms, and Jeff Dean likely knows them cold.
Sure there's always a degree of luck, and Google errs on the side of false negatives, but there are certain people that are so high above the hiring bar that luck becomes too tiny a factor to be relevant.
That's pretty much what Leetcode is. When I interviewed at Google I was asked tree traversal and hashmap design questions that were very similar to leetcode questions.