We are at an impasse here, because I do not accept the premise that the leetcode tests realistically gauge competency or serve as an effective filter. In your

We are at an impasse here, because I do not accept the premise that the leetcode tests realistically gauge competency or serve as an effective filter. In your hypothetical the implication is that the leetcode would be effective at removing people who “talked a big game but are incompetent”. I disagree with that. I could be wrong about leetcode, but for me to realistically engage with your argument would be a tacit agreement with the premise, and I cannot engage with that in good faith.