Disable a skript from another skript in the same Objekt

First of all, I know that such a question has already been asked, but these answers have not helped me.

So I watched this Youtube Tutorial https://youtu.be/gAB64vfbrhI and I copied the script, but it no longer works because of the version of Unity (I think that's the problem).

So the "Player Collision" should disable the "Player Movement" script and they are in the same Object:

And now i have this code from the Video and the "Player Movement" script doesn't disable itself. Can someone explain to me how it has to be right for it to work using UnityEngine;

 public class PlayerCollision : MonoBehaviour
 {
     public PlayerMovement movement;
 
     void OnCollisionEnter(Collision collisionInfo)
     {
         if (collisionInfo.collider.tag == "Obstacle")
         {
             movement.enabled = false;
         }
     }
 }