FollowObject.cs

using UnityEngine;

public class FollowObject : MonoBehaviour {
    public Transform Object;
    public float _Smoothing = 1f;

    public void LateUpdate() {
        if (transform.position != Object.position) {
            Vector3 ObjectPositon = new Vector3(Object.position.x, Object.position.y, transform.position.z);
            transform.position = Vector3.Lerp(transform.position, ObjectPositon, _Smoothing);
        }
    }
}