I think it's instructive to consider who the employer is too. Leetcode works well for Google. They pay top notch compensation and have a long line of people who

I think it's instructive to consider who the employer is too. Leetcode works well for Google. They pay top notch compensation and have a long line of people who want to work there. They can put horrible hoops up and enough people would still want to jump through them. Most companies have cargo-culted the programming interview, even when they don't have the same amount of demand from candidates.