>>11946052A lot of software can force a reaction with a shortcut.
But most people, from my experience, leave it on freeform tracking mode where it will pick up exactly what your face is doing. (mostly indies)
>>11946796Vtube studio and indies using shit webcams would beg to differ. iPhones tracking isn't good and good image recognition has been solved for a decade+.
The depth sensing in iPhone literally isn't high enough resolution for good face tracking at the distances most people place them in streaming setups, which is why their face tracking fucking fails and spazzes out most of the time, and can't do something as simple as tracking their mouth position.