Currently there are 3 native Telephoto Zoom lenses for Nikon Z50 and all of these lenses are autofocus (AF) type.
Nikon Z50 doesn't have a sensor based image stabilization system but 3 of these Telephoto Zoom lenses features optical image stabilization.
Since Nikon Z50 has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 2 Telephoto Zoom lenses with Weather Sealings.