In my experience they often lack the curiosity to find background information and possess an adequate overview. Like they'll be able to write quite decent code

In my experience they often lack the curiosity to find background information and possess an adequate overview. Like they'll be able to write quite decent code in C++, but in an interview they'll fail at an easy question like 'what are the differences between C, C++, and C#.' (like they'll have no idea about different paradigms) It's a complacent sort of attitude, like 'I did a degree, so obviously they taught me everything worth knowing.'