@davide When testing, the Leap Motion seemed to be working ok with the Cosmos tethered and using the USB-C plug inside the headset.
The hand tracking used is generic, meaning it could work with either Vive or Oculus hand tracking, Leap Motion and XR controllers while keeping the same interactions and haptics. Unfortunately because of the USB-C constraints and the Wireless Adapter latency, Leap Motion couldn't be used and the Vive hand tracking had an enormous lag, flickering. The situation changes when tethered and the practicality of the USB-C becomes obvious there. .