Rejected for being "over-practiced"?! Many companies have made their interviews so difficult that people are spending months studying and doing hundreds of lee

Rejected for being "over-practiced"?! Many companies have made their interviews so difficult that people are spending months studying and doing hundreds of leetcode problems. Meta's Interview Guide even says you need to be able to solve 2 problems in 35 minutes. They recommended solving medium and hard problems in less than 15 minutes. On top of that, they say: "Let us know if you’ve seen the problem previously". The only way I can solve two questions in 35 minutes is if I've seen it before or I've "over-practiced".