I went to Stanford (albeit as a grad student). The CS193* classes are electives for the undergrad CS majors. I think this one is popular simply because lots of

I went to Stanford (albeit as a grad student). The CS193* classes are electives for the undergrad CS majors. I think this one is popular simply because lots of Stanford students want to make apps for the phone they have in their pocket. The core curriculum is based around algorithms, data structures, theory, discrete math, etc etc that you expect from a top university in CS. They use a variety of languages like python, java, lisp, C, etc to illustrate these concepts through class projects. Learning the SwiftUI API is not a required part of the core curriculum at Stanford.