These "bolt" on lens on lens, for instance for phones are often of a poor quality and it is a compromise approach.
It is better to put a "zoom" lens on a second camera like a few of us have to get that further out capture, cuz it is true that often things happen further out where a normal dashcam will only provide a very remote view of what happened.
Even if i seldom use my zoom cameras footage, then it is actually one of the cameras in my car i would hate to be without, i would rather forgo my side cameras than the zoom camera on the windscreen.
You can of course change the lens on your camera for a permanent solution, but i like the wide view on dashcams, but just not alone.
If anyone made a quality dual channel but both cameras aiming forward and one being a wide angle and the other a "zoom" lens, i would so pick that up.