Ima take a shot at making it easier. This is for any two directions you may want to find the angle for
your two vectors, A & B, (gotta be normalized)
take the cross product of them
take the of them too
the asin of the length of the cross product is your angle when the is >=0
in degrees, 90-asin + 90, when is < 0
you’ll have the right rotation btw if you feed the cross product and the angle value into a “Rotator from Axis Angle” block,
*just pay attention to who is A vs B to start with in the Cross product.