It's a strange thing. Some years ago, I had an XPan (original version) but never really warmed to it as the shutter speed did not show in the viewfinder and, unless shooting in good light and/or at high ISO, I found a lot of my photos were soft or downright blurred. I was using it for general street shots and had it during a UK winter. I sold it for more than I paid for it and moved on. I still love the XPan panoramic format and was delighted to find that my Fuji GFX 50r has a specific aspect ratio to mirror the XPan. Apparently, to get the same angle of view as the XPan with the 45mm lens, you need the Fuji GF 30mm lens. I don't have this but the 32-64mm I have is near enough for me. To be honest, so long as the end result is what I'm after, I'm not at all worried about focal lengths. Once we're out of lockdown, I intend to go looking for compositions which lend themselves to panoramas.
I know they're not shot on an XPan but here's a few photos taken with my GFX 50r using the XPan panorama aspect ratio. The location is a place called "Shingle Street" on the Suffolk coast about an hour or so drive from where I live.