Currently there are 4 native Macro Prime lenses for Panasonic GH5S and all of these lenses are autofocus (AF) type.
Panasonic GH5S doesn't have a sensor based image stabilization system but 2 of these Macro Prime lenses features optical image stabilization.
Since Panasonic GH5S has environmental sealings (Weather Sealing), you may like to couple your camera with one of these 1 Macro Prime lenses with Weather Sealings.