Just to be clear I have no problem passing these interviews, I just spent a few weeks cramming leetcode and got a job at Google. Leetcode wasn’t the main reason I was hired, but it was a filter that I had to get through (I’ve never been given fizzbuzz before, but I assume that is just because it’s no longer in style and hasn’t been for more than a decade). You just don’t throw yourself into on the fly coding, you practice them because your competition has and you will look bad if you don’t. Let’s not pretend that any of us are ready to do alien dictionary at the spur of a moment, or thats a useful skill for our role.