I would expect specialists to be subscribed to journals and reading the latest articles in their field. When I saw a specialist at UCSF this was definitely the case; while my GP still has gaps where their current knowledge on a specific subject is from their time at med school.

An equivalence would be a front-end engineer being naive to the happenings on the Linux kernel mailing list. They could likely understand what's going on if they took the time to read it, but that is not their focus.