I just now happened to stumble upon this essay on the M10 Monochrom which is accompanied by a nice set of sample images.
In thinking about the concept of a black and white only digital camera in general and about the M10 Monochrom in particular, I was smitten with a thought that I cannot shake free of: The M 10 Monochrom may well be the pinnacle of the digital M camera.
It is going to be an awfully hard act to follow. If anyone can best the M10 Monochrom, it would have to be the gents and ladies of Werzlar.
https://www.popphoto.com/story/gear/hands-on-leica-m10-monochrome/