CameraFollow.cs

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

public class CameraFollow : MonoBehaviour
{
    public Transform cameraPivot;
    public float posSmoothingX = 0.3f;
    public float posSmoothingY = 0.3f;
    public float posSmoothingZ = 0.3f;
    public float rotSmoothing = 0.1f;

    void FixedUpdate()
    {
        float smoothedPosX = Mathf.Lerp(transform.position.x, cameraPivot.position.x, posSmoothingX * Time.deltaTime);
        float smoothedPosY = Mathf.Lerp(transform.position.y, cameraPivot.position.y, posSmoothingY * Time.deltaTime);
        float smoothedPosZ = Mathf.Lerp(transform.position.z, cameraPivot.position.z, posSmoothingZ * Time.deltaTime);
        transform.position = new Vector3(smoothedPosX, smoothedPosY, smoothedPosZ);

        float smoothedRotX = Mathf.LerpAngle(transform.rotation.eulerAngles.x, cameraPivot.rotation.eulerAngles.x, rotSmoothing * Time.deltaTime);
        float smoothedRotY = Mathf.LerpAngle(transform.rotation.eulerAngles.y, cameraPivot.rotation.eulerAngles.y, rotSmoothing * Time.deltaTime);
        transform.rotation = Quaternion.Euler(new Vector3(smoothedRotX, smoothedRotY, 0f)); // azzero rotazioni asse x e z
    }

}