Remove "Session Space" From ARFace Anchor

Is it possible to remove the AR session space rotation from the ARFace pose? Basically I'm trying to get the model to rotate with the user's head while leaving out any rotation to session space.

I'm trying to do some AR Mocap but don't want the prefab flying around the scene, however I do want to preserve the rotation of the head. It seems like they are both tied to the pose in sessionRelativeData.

Thanks in advance.

 

Here is the solution I wrote for ARKit, but it works for ARCore too:
https://forum.unity.com/threads/getting-arface-rotation-without-scene-rotation.949734/#post-6194695