Another type I can think of is what scholars call "diagetic," where the music emerges naturally from the reality of the scene, whether from performers, radios, etc. Of course, often all three of these types appear in the same film. Of course, I assume that Vanity Fair's article is a list of best soundtrack albums.
Of course.
I call the diagetic the "sound" soundtrack. Just to confuse matters, most of the songs on the Diner soundtrack issued from jukeboxes, car radios, record players, and so on during the course of the film.
What a surprise that you would mention that album. (And it is a classic!)