Repository/Assets/Follow.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class Follow : MonoBehaviour
{ 
    [SerializeField]
    private Transform target;
    // Start is called before the first frame update
    // Update is called once per frame
    void Update()
    {
        Vector3 lookPos = target.position - transform.position;
        Quaternion lookRot = Quaternion.LookRotation(lookPos, Vector3.up);
        float eulerY = lookRot.eulerAngles.y;
        Quaternion rotation = Quaternion.Euler(0, eulerY, 0);
        transform.rotation = rotation;
    }
}