I think that eye tracking perhaps could be used to enhance gesture-based input methods though. It could provide a hint at which object a gesture is directed at in cases where that would be ambiguous.
I have tried eye tracking as primary input method some years ago in another setting, and I very much did not like the experience.
> I think that eye tracking perhaps could be used to enhance gesture-based input methods
That's how it works on the Vision Pro. I didn't really feel annoyed by it, but make sure the device is calibrated to your eyes, or the results might not be that great.
I have tried eye tracking as primary input method some years ago in another setting, and I very much did not like the experience.