I have found that the 35-75 can render excellent images, it's a heavy lens and expensive, but the V lenses appear to be hard to find right now, at least the 90V and 38V. 55V shows up now and then. I have always preferred a zoom with a mirrorless camera due to the fact that I can frame the image and not have to constantly remove the lens.
I rented a XCD 30mm, from Lenrentals, and it did impress me, but hard to justify the cost for just 5mm more focal length. It's a nice size and weight for the X2D.
The 21mm is an amazing lens, I have access to one, but do not own it. Long out of production now, but extremely sharp.
The older HC lenses are also to be considered, especially if you have an orange dot version so AF still works. I am still trying to locate a 210mm orange dot, plenty of non orange dot glass out there, but I prefer AF.
Just purchased a re-certified 90V from Capture Integration, excellent optic and amazingly small lens for the focal length.
I saw the comments on Fuji and QA/failure. A bit of a story here:
I have owned, and used from the 50S to the GFX100 over 6 years, never a failure. Last fall I purchased a GFX100II, and last month the shutter button failed. Just would not work. Everything else still worked and you could fire the camera via remote. I sent the camera into Fuji US for a repair and ended up getting a body swap. Not sure what was wrong, but net it was not an easy fix. This does concern me as I have only 6 months left on my warranty, and did not purchase an extended one. A shutter button IMO should never fail and also should be one part that is given a very hard amount of testing in during design. I assume that the button on the GFX100II is the same as the GFX100, at least they look the same, so my issue may have just been a one off, hope so.
Hasselblad US repair is still an unknown for me, but I have not read good things about the process since the US center was moved to LA.
Huge loss for me with the X2D Is Capture One, which I have used for over 15 years now since 3.7.8. It's possible to get C1 to open the files from the X2D, but not sure the extra work is worth it. As for Phocus, not impressed at all, way slow, not happy with the import process or export, layering is basic to say the least. For a single image workup I can tolerate it, but for shots that are taken as a pano, not possible, as you can't copy anything from one image to the next (at least I can't) and the masking is primitive. LR has the best solution with their AI masking and they seem to get a pretty good color solution most of the time.
Paul C