After hearing people complain about these fearsome "leetcode interviews" for what feels like a decade now, I have to wonder when I am finally going to encounter one. All I get are normal coding problems.
I've had candidates describe what I'd loosely call "warm-up" questions as leet code problems. Thing like finding the largest integer in an array or figuring out if a word is a palindrome.
typical examples would be sorting algorithms or graph search problems, and some companies do indeed ask these; some big tech (the ones everyone studies for) may exclusively ask these. Thats imo largely because CS new grads are their primary pipeline.