Is there a way to disable a virtual camera and still have it update its follow offset? In other words, I still want the virtual camera to move when it’s not the active camera.
Alternatively, is there a way of switching between virtual cameras without disabling them?
Yes, that’s what the priority system is for. Highest-priority vcam is the active one, all others that are enabled remain in “standby” mode, which means they update but are not actually driving the Unity camera.