How to make a script work in scene1 only if a collider in scene2 is triggered

So, I’m making this game that has a Level Select screen with few levels and then each of those levels has a scene. This is the LevelSelect scene:
[175049-levelselect.png*_|175049]
And this is the script attached to the LevelManager in this scene:

    private void Start()
    {
        PlayerPrefs.SetInt("Scene1stars", 3);

        for (int i = 0; i < levelLoaders.Length; i++)
        {
            if(i == 0)
            {
                if(PlayerPrefs.GetInt("Scene1stars") == 0)
                {
                    levelLoaders*.interactable = false;*

}
for (int j = 0; j < starsOne.Length; j++)
{
if (PlayerPrefs.GetInt(“Scene2stars”) > j)
{
starsOne[j].gameObject.SetActive(true);
}
}
}
if (i == 1)
{
if (PlayerPrefs.GetInt(“Scene2stars”) == 0)
{
levelLoaders*.interactable = false;*
}
for (int j = 0; j < starsTwo.Length; j++)
{
if (PlayerPrefs.GetInt(“Scene3stars”) > j)
{
starsTwo[j].gameObject.SetActive(true);
}
}
}
if (i == 2)
{
if (PlayerPrefs.GetInt(“Scene3stars”) == 0)
{
levelLoaders*.interactable = false;*
for (int j = 0; j < starsThree.Length; j++)
{
if (PlayerPrefs.GetInt(“Scene4stars”) > j)
{
starsThree[j].gameObject.SetActive(true);
}
}
}
}
if (i == 3)
{
if (PlayerPrefs.GetInt(“Scene4stars”) == 0)
{
levelLoaders*.interactable = false;*
}
}
}
}
This is a scene of the level1 for example (three stars on level 1 are just example of what happens if all three points in level 1 are collected):
[175050-levelscene.png|175050]
It has this script attached to the “points”:
public class PickUpPoints : MonoBehaviour
{*
public string levelName;_

private void Start()
{
levelName = SceneManager.GetActiveScene().name;
}

private void OnTriggerEnter(Collider other)
{
PlayerPrefs.SetInt(“Scene” + (SceneManager.GetActiveScene().buildIndex + 1 )+ “stars”, PlayerPrefs.GetInt(“Scene” + (SceneManager.GetActiveScene().buildIndex + 1) + “stars”) + 1);
}
}
Now, the problem is, if I for example click on level1 in the Level Selection screen to start the level1 scene and then while playing collect two points I will get two stars in the Level Selection scene even if I quit the “play” in the editor or touch a game over colliders (up or bottom black lines). I would like to make those stars appear in the Level Selection scene only if the player touches the Level finish collider, otherwise, I would like those points and stars not to be saved in the playerprefs. How can I do that?
*
*

You could use a static script and a start script to keep track of bools in different scenes. For example:

public static class ControlBools
{
      public bool ColliderWasTriggered;
}

Then, when you enter the collider in Scene2, you can set the bool to true. For example:

void OnCollisionEnter(Collider collision)
{
     // do collision stuff

     ControlBools.ColliderWasTriggered = true;
}

Finally, whenever you load Scene1, there needs to be a script that has a reference to the script you want to enable/disable, depending on if the collider was entered in scene2. For example:

public class StartScript : MonoBehaviour
{
     public Scene1Script script;

     void Start()
     {
          if (ControlBools.ColliderWasTriggered)
               script.enabled = false;
     }
}