Like all game mechanics, it can be implemented in a clumsy way, or as part of a rewarding movement system.
I think that skeuomorphism in games is a decent accessibility feature for people just getting into games, but also video games have been a cultural staple for decades, so it’s not really that necessary that games mimic real movement anymore.
I don’t have a good crouch-jump example, but games like Quake have taken jump movement tech to a crazy level, originally intended or not.