[dotnet00]

In my experience (granted, I'm in a research lab, so there's likely a bias compared to regular industry), CS/CE are somewhat unique in that way. Most CS/CE people don't have to touch most of what they've studied, as a CE I took classes on lasers, radio, convex optimization, quantum computing, op amps etc but haven't had to use the detailed knowledge from the classes at all. Many professors even commented in the classes themselves that most of the content was not likely to matter in industry.

My most useful classes have been math as they gave me the fundamentals to pick up enough of other fields to work with them. To the point that I often joke that I got an applied math degree rather than computer engineering.

But, in comparison, the physics, EE, mechanical engineering etc people I work with frequently use the stuff they learned from school.