I’ve made a social notation of the high number of whites that oddly list jazz as one of their favorite types of music, yet never, never listen to it.
My theory is that its an expected and socially accepted answer to “What kind of music do you like?” Just like people will list books they’ve never read or read once in English Lit, as a “favorite book”.
I’m like you, I find smooth jazz dull and boring.
Music that is more celebrated than listened to. A burst of jazz in a commercial will get attention. An hour of it, as you say, boring.
Part of the original context of jazz is as total improvisation. Composed jazz is almost a contradiction in terms. At a genuine jazz concert, something like a piano will keep up a background while various soloists will step up and improvise, then when finished will often get applauded.
Hell is Kenny G being blasted for all eternity.