I use an X-T3 and own the 16-80/4 purchased last Nov 2020.
Im actually impressed with the lens' IQ (sharpness especially) and can shoot down to 1/4/sec shutter.
If youre interested please check out my night shots on my photo blog exclusively with the 16-80: https://thelensmanin.me/firefighting-in-makati-2
And my mini-review together with a 3rd party lens I play with: https://thelensmanin.me/mini-reveiw-ttartisan-50mm-f12-fujinon-xf16-80mm-f4
Im a prime (non-zoom) shooter, so being impressed with a zoom which I haven't been using for a decade is saying something.