move instantiasted gameobject

[zealous cloud]

   
IEnumerator SpawnWall()
    {
        randomn = Random.Range(0, 2);
        GameObject obs = Instantiate(Obstacles[randomn], new Vector3(0.5f, 0.5f, zPos), Quaternion.identity);
        Vector3 move = new Vector3(0, 0, 1) * speed * Time.deltaTime;
        //obs.transform.Translate(move);
        //obs.transform.Translate(Vector3.forward * Time.deltaTime);
        obs.transform.position += move;
        yield return new WaitForSeconds(2);
        creatingWall = false;
    }```
Im trying to make a instanced prefab game object to move a direction after spawning it but cant seem to nail down the command