Sony FX 6 Quick Start Manual page 83

Focusing: Manual, Hybrid and Total Auto
With the Sony kit lens (or other Sony lenses) working in conjunction in the
camera, there are three possible focus "modes": manual, hybrid, and total
auto.
Leaving aside the "total" manual option, because it is largely redundant, this
section will concentrate on the Hybrid and Total Auto Focus modes.
Hybrid mode focusing allows you to easily switch between manual and auto
focus. There is no other camera where this switch is so intuitive!
In Total Auto Focus, manual focus is technically possible, but not practical.
The focus tracking option is quite different in this mode.
Both modes have their uses, but the Hybrid mode is the most flexible.