trivially, i’m happy to discriminate in favor of, e. g. , people who are fluent in french and english if i want to hire a french and english translator.

Or in the context of say, admissions, i would expect to see discrimination on academic merit in the field of study for a program you’re applying to. If you were an outstanding undergraduate who majored in like, the archaeology of medieval germany, you should expect to have a very hard time getting into a graduate program in high energy physics.

(tangentially i happen to know a MD/PhD whose undergrad was performance ballet, but she double-majored as a physical chemistry major and did piles of lab work too, and thus didn’t have any troubles)