Both. Maybe I’m not describing it right, but the air nozzles in most larger aircraft have been slightly adjustable for a long time. They are typically like a ball in joint socket you can point anywhere in its cone of motion, and that you can twist to open or close. This has been standard on flights for a really long time.

Newer flights have nicer versions of it, but some form of directional air nozzle has been around for a long time.