I believe that if we put an axial stop or a guide with zero gap, it will be a rotational restraint also. But that is purely hypothetical.Support with zero gap is not possible ( unless somebody welds it which then becomes a six DOF restraint).

So in my opinion rotational restraints are not possible in real world. Also the amount of rotation that a piping node is usually subjected to, say, in the range 0.1 degree ( just an example). Preventing that : wow !

Regards