Our built-in-the-late-90s house has one of those in the hall closet upstairs. No door on it, just a hole. There’s some flashing and a “chute” that’s just a piece of sheet metal angled at 45 degrees to keep stuff from free-falling the whole way down, so it doesn’t look unfinished, but it’s basically just a hole.
Really it’s just a laundry chute. If the laundry room is directly under you, why make it fancier than that?