Just a note for others - if you do go downMaya Autodesk 2020 - routeThey have prebuilt binaries for USD / and Maya plugins here / ( they're currently not included). https://github.com/Autodesk/maya-usd/releases/It doesn't seem like Modo supports usdz out of the box either.

your mileage may vary / skeleton detection yes - I'm saving the ARFrames of video into a binary / not sure if it has depth data https://github.com/8secz-johndpope/ARBodyPoseRecorder