This is just a PSA for anyone who has the Zf and doesn’t know or is looking at the ISO setup on it. If you like to shoot manual and auto ISO, you set the Zf to Auto in the menus and lowest ISO (200) and then when you’re in M the ISO wheel is now the max ISO range setting. The camera will always select the lowest ISO possible. This is how it works in M/S modes, A/P don’t work the same so you need to switch to C and bind the record button to ISO and you can use that to switch auto on/off and adjust auto range like a normal Nikon DSLR if you use those modes. I use mine nearly exclusively in M with auto ISO.
You’ll see LOTS of reviews that say the camera requires menu diving every time to change ISO but that’s simply because they spent no time learning how the camera works. Once it’s understood it’s actually far more efficient than Fujis A settup to switch modes between PASM functions. Fuji requires a lot of dial spinning in comparison. I’ve owned both.
The camera is fast to operate with the dials once you practice with it and the lack of second FN button is less flexible but not that big of a deal once you get it setup how you like. AF works just like the Z8 but it’s not as accurate to track with the mechanical shutter and slower sensor readout, it’s actually more accurate in electronic shutter, probably because the sensor isn’t momentarily blocked and that’s how I use mine in any non rolling shutter sensitive situation.