Possible to get bone rotation from a skeletal mesh?

There is a GetBoneLocation(), but not for rotation. I only see GetSocketWorldLocationAndRotation(), but in this case I’d rather not rely on Sockets as I’m using a modular skeletal mesh so would rather not have to add sockets to many meshes.

IIRC GetSocketWorldLocationAndRotation also works with bones if you use the bone name directly (even if the name implies it needing a socket)