Would you rather do 10 take-homes or 10 leetcode questions?

Either way, when you fail, chances are that you will not get any meaningful feedback other than "we have decided to move forward with other candidates".

If you had done a take-home, how could you know where you went wrong?

If you had done a leetcode question, you can look up the question after the interview and usually learn from your mistakes.

With leetcode you usually don't need the interviewer's feedback to improve. You don't even need the interview. And after a certain point you won't need that much time to prepare.