Thanks for the insight! Yeah, On the version of Unity (6.1) and the latest openXR plugin (via the meta xr tools plugin) I am using, it straight up won't let you build in Gamma, (despite Vulcan API) I've found advice going back to 2022 that the accepted workaround to build in Gamma is to rollback the openXR to "legacy interaction" but that locks me out of newer interaction features, i was hoping not to have to roll the whole project back.