See my Fujifilm GFX wish list.
This is a WAVING RED FLAG article, an absolute must-read for anyone considering the Fujifilm GFX and in particular the 120mm f/4 macro. I confirmed my findings with two other independent series. I discuss the possible causes (somewhat unlikely, but hard to rule out until I get a replacement GFX).
Includes images from f/4 to f/11 at up to full resolution along with large crops.
The problem I show is so damaging that I must now cease all evaluation of the Fujifilm GFX until a replacement arrives. While I believe the issue is optical, it makes no sense to proceed further until I rule-out the GFX itself and get a replacement 120mm f/4 lens.
A plain, but immensely instructive evaluation scene.