Looking at the spec article, the interior shots hand-held as slow as 1/4 sec. are a real testament to the quality of Fuji's OIS! Again, congratulations on the acquisition. It will only enhance your shooting style. I'll go out on a limb and predict you will find it more applicable for your "people pix" than for the Ansel Adams stuff...
Always thought Fuji and to some extent Olympus, had optics that were much underrated. I've worked in and managed camera stores off and on back in the film days, got to "fondle" a lot of gear. Both of those manufacturers were usually overlooked by folks. Nikon, Pentax and Minolta were the most recognized brand names then.
When we decided a point-and-shoot digital would be a good thing for Mitsy's use, it was a fixed lens Fuji FinePix that got my attention. After the most recent of those began to have a mind of its own (she went through three iterations of FinePix) I decided to get into the Nikon DSLR's. Years ago I'd been gifted a FinePix S2 Pro (F-mount) by a friend who was still shooting professionally for a living as a hand-me-down. But since I don't shoot for a living any more, to "modernize" we went with the D7500's as a matter of budget and availability. And we retain use of all the film era F-mount optics (albeit manual) I've accumulated over the years.
The Nikkor 10~20mm I got is not VR, so no 1/4 sec. exposures hand-held fer me!