Zone focusing can be pretty useful
On the Fujifilm system I tend to use back-button focus and zone focusing quite a bit, if not, most of the time. My process to decide on focus usually goes something like this:
- How much of the object and its environment do I want in focus? This guides my decision on aperture.
- I turn on depth of field preview with the red highlight for focus peaking, this helps me in one of two ways: I manually adjust focus, or I leave focus as set and move back and forth to get my focus plane as I want it.
- Unless I have a specific need for freezing movement, or blurring it, I will leave shutter speed at an auto-ISO setting. If not, then I'll adjust shutter speed as needed, and manually adjust ISO to compensate, together with exposure compensation.
Not difficult, and it helps that all this is easily accessible without taking my eye off the viewfinder, through all the physical controls on the camera and lens.