If you are considering the potential to post your 3D in Facebook, maybe you´d like to read this:
Nice, I’ll give this a go!
couldnt export a glb file with textures there’s no match with the principled shader of cycles ?
Embeding Sketchfab is still better solution than this interial fb’s 3d system.
It works on FB, but the FB viewer seems to leak a lot of functionnality. (compared to https://gltf-viewer.donmccurdy.com or http://sandbox.babylonjs.com or some others).
I’m trying this, but to have the correct visualization of the materials you have to use the nodes created specifically for the script.