I think we're talking past each other. I'm saying that no company tell you that (1) all questions you will be asked are on leetcode, (2) these are the acceptable answers -- passing the tests does not always count as acceptable, and (3) if you pass all these tests you will be offered a job, or entered into a lottery with all other people who pass them?

leetcode as used by FAANG is a hurdle that you can't ever be sure you actually cleared. it's not a test that returns a pass fail score.