I'm new to Fuji and very much an amateur. I've got an 18-55, 10-24 and 100-400 on an X-T3. For generally walking round, street and landscape, I'm tending to use the 10-24 and very impressed with results. I might change over to using the 18-55 as my standard, but I just love the huge wide 10mm for landscape and would miss not having that to hand?
I've also got an X100F and like you, finding the 23mm just a tad too narrow for me, I'd prefer it was 18mm.
16-80 would be great, but 18-55 is pretty good also, that's what I'd go with given one choice, guess that's why it's often bundled as a standard. It has OIS, but not WR which isn't much of an issue to me cause if it's bad weather I'm inside!