I'm very new to coding and was wondering if anyone could help me with leaving clean code pasting when I have a question also new to unity and this site as well

When you want to post a code, use the Code Sample feature (it's the button with 101010 image)

The code you paste should look like this

 using UnityEngine;
 
 public class Test : MonoBehaviour
 {
     private void Start()
     {
         Debug.Log(DoIHaveMeshRenderer(transform));
     }
 
     public bool DoIHaveMeshRenderer(Transform objectToBeChecked)
     {
         bool _descendantHasMeshRenderer = false;
         if (objectToBeChecked.childCount > 0)
             for (int i = 0; i < objectToBeChecked.childCount; i++)
                 _descendantHasMeshRenderer = DoIHaveMeshRenderer(objectToBeChecked.GetChild(i));
 
         if (_descendantHasMeshRenderer)
             return true;
 
         if (objectToBeChecked.GetComponent<MeshRenderer>() != null)
             return true;
         else
             return false;
     }
 }