I have tried VRChat with Pimax 5K BE + SteamVR Knuckles EV3 combination.

That seems to work incorrect.

In game Menu Scene. Index Controller models show. but all sensor based gestures seem be disabled. (and I CANT move anywhere, but some and trigger works.)

https://twitter.com/synqark/status/1144236328894099457

The Labs works great.

https://twitter.com/synqark/status/1144235984134926336