Eye tracking and Hand tracking games

Is there some topics or links where i can find everything for eye track( games and etc).
Also for VR chat - how i can enable hand track and eye track there?

I am curious too.

What is the use we can do of handtracking in vr?

What games we could use hand tracking in and if there is a way pimax can make use of the hand tracking module in games that no other headset + hand tracking module, has offered before

Would it be possible to have such use of the pimax hand tracking module for any game in steamvr ?