For me it was a way to attach an object to the character without having the rotations of the character. It’s a simple way to do that when the constraints and nothing else work out.
https://dev.epicgames.com/community/learning/tutorials/zrK0/unreal-engine-how-to-attach-objects-without-inheriting-rotation
This is exactly what I needed to stop the player collision from rotating with the VR headset.
You are beautiful person. I love you.