How to get a GameObject from another GameObject

I have a prefab, and i Want to access this prefab object from another object

the scene hierarchy has:
- Player - Camera - Background - Floor(Prefab)

and the prefab hierarchy has:
- Floor - DeleteTrigger - CreateTrigger - TransformReference

public class LevelGenerator : MonoBehaviour { // Start is called before the first frame update [SerializeField] private GameObject FloorRef; private void Awake() { GameObject g = FloorRef.Find("Floor") Instantiate(FloorRef, new Vector3(10, 0), Quaternion.identity); } }