As before

game/Assets/FreeLookAddOn.cs

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+using System.Collections;
+using System.Collections.Generic;
+using Cinemachine;
+using UnityEngine;
+using UnityEngine.InputSystem;
+
+[RequireComponent(typeof(CinemachineFreeLook))]
+public class FreeLookAddOn : MonoBehaviour
+{
+    [Range(0f, 10f)] public float LookSpeed = 1f;
+    public bool InvertY = false;
+    private CinemachineFreeLook _freeLookComponent;
+
+    public void Start()
+    {
+        _freeLookComponent = GetComponent<CinemachineFreeLook>();
+    }
+
+    // Update the look movement each time the event is trigger
+    public void OnLook(InputAction.CallbackContext context)
+    {
+        //Normalize the vector to have an uniform vector in whichever form it came from (I.E Gamepad, mouse, etc)
+        Vector2 lookMovement = context.ReadValue<Vector2>().normalized;
+        lookMovement.y = InvertY ? -lookMovement.y : lookMovement.y;
+
+        // This is because X axis is only contains between -180 and 180 instead of 0 and 1 like the Y axis
+        lookMovement.x = lookMovement.x * 180f;
+
+        //Ajust axis values using look speed and Time.deltaTime so the look doesn't go faster if there is more FPS
+        _freeLookComponent.m_XAxis.Value += lookMovement.x * LookSpeed * Time.deltaTime;
+        _freeLookComponent.m_YAxis.Value += lookMovement.y * LookSpeed * Time.deltaTime;
+    }
+}

game/Assets/FreeLookAddOn.cs.meta

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