The Documentation reports that the Left Controller Menu button on Vive corresponded to Button.Three (X) on the touch controller. However, when setting up the button mappings and testing the Oculus touch controllers while using the OpenVR SDK we found that Button.Four (Y) correspondes to the Left Controller Menue Button, not Button.Three (X)

This is the same for the right controller as well (Button.Two (B) Corresponds to the Right Controller Menu Button, not Button.One, as reported in the docs.

2. How we can reproduce it using the example you attached
1) Download attached project
2) Set OpenVR as the primary SDK
3) Setup Oculus Rift
4) Enter Playmode
5) Press the Y button
6) Observe that the text field "X (Left Menu Button):" reports the button is pressed/held. This is the bug.

Expected:

The Y button does nothing when using OpenVR. Instead, upon pressing the X button the text field "X (Left Menu Button):" reports that the button is being pressed\held.

Either that or change the docs or talk to valve about this.

Related documentation: https://docs.unity3d.com/Manual/OpenVRControllers.html