Hi @Hulkbust44,
I finally found the issue : it was a Plane issue.
Even if the perfect Mirage2000C model support full clickable cockpit, the hand interaction is actually not supported. I will investigate deeper on that.
Yesterday I gave it a try with the F18, and everything was working fine ( at least working - switches and button are good enough during free flight, but the rotative one are extremely random)
I will try to combine with some mouse control, but anyway, just using OpenXR is supported with DCS / Quest 3 configuration.
Thanks for the support.
See you soon above the clouds.