Do people have to grind LC even after many YOE?

I’m still in school and most of my time is spent grinding LC but I tell myself that this is just because I don’t have any experience. But then I see people talking about doing the same thing even after years in the industry just to change jobs. Is this a common experience for people? Is this the way companies interview people who aren’t in school or fresh out of college too? It doesn’t make much sense to me.

You definitely still have to do it but since you’ve done it before, it’ll likely take less time just to brush up on all the types of problems