making Turrets

I am now a turret to make and have two objects, and each has its own function. only one object needs to run in the y axis and two object should run in the x axis only do I have the code built up in this way:

 public class Turretgun : MonoBehaviour 
 {
         public Transform target;
         public float rotateSpeed = 45;
        
         // Update is called once per frame
         void Update () {
        
                 var localTarget = transform.InverseTransformPoint(target.position);
                 localTarget.y = 0;
                 var targetRot = transform.rotation * Quaternion.LookRotation( localTarget );
                 transform.rotation = Quaternion.RotateTowards( transform.rotation, targetRot, Time.deltaTime * rotateSpeed );
                
         }
 }

The code I use when both objects only changed the x and y axis only. there is no other way to be able to work together?