In order to let users choose to use hand tracking in SKYBOX or not, we added the option to turn on "In-App Hand Tracking" inside SKYBOX in the latest beta release.
And the default option for the setting is "OFF", so that new users would not use hand tracking to trigger anything by accident.
However, we cannot turn off the hand tracking entirely (that's why you guys see the Oculus button).
As long as you keep the setting "ON", then you should have the same experience as previous beta release.
We will keep improving the hand tracking experience in the future release. Any suggestions would be highly appreciated :)