Currently there are 11 native Perspective Control Prime lenses for Nikon D850 and none of these lenses are autofocus (AF) type.
Nikon D850 doesn't have a sensor based image stabilization system and none of these lenses have optical Image Stabilization.
Since Nikon D850 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 2 Perspective Control Prime lenses with Weather Sealings.