100% agree.

Wrap your head around leetcode first.

Once you feel comfortable (memorize?), pramp or similar.

Resume just needs 3 things experience (each point needs to invite questions. i.e. a conversation starter), accomplishments(optionl) and education.

Leetcode matters for junior roles. Interviews for senior roles generally include system design questions and you won't learn how to answer those well from Leetcode.

L5+ (E5+ in FB) requires strong system design interviews for engineers.