I was doing a quick test to see the coverage of my Leica Lenses on the Fuji GFX with the Kipon adapter.
From what I have seen the following lenses cover well:
These lenses don’t cover the sensor size well:
35mm Summicron V4
35mm Summicron V2
50mm Summilux asph
50mm Summilux pro asph
90mm Summicron(non apo)
28mm Elmarit asph
21mm Elmarit asph
As for the sharpness I did a test and was pretty surprised. The lenses resolve very well even outside the center. Of course there is vignette and some croping might be needed.
Click on the links to see pictures at all apertures with 100% crops.