Small wide-angle lenses used to be a very desirable thing. Back in the film days there were many esteemed photographers who loved the manual focus 20mm F4 lens. And F4 is a lot more versatile than F5.6, but for many landscape photographers they could probably get buy with this aperture. It might also be useful as a gimbal lens. The lens is basically a cheap, wide-angle pancake lens that weighs only 146grams. It’s available for the Nikon Z, Sony E, and L mount systems. Close focus is 0.3 meters / 0.98 feet.
The real question is how does it perform optically. Early reports indicate a sharp center, weaker edges, reasonable distortion, and significant vignetting. This is kind of what you would expect from a small wide-angle lens. The vignetting may or may not work for your use case.