Input axis defined but not working

I'm trying to use a simple code example to move a square object like this:

public GameObject note1;
Vector2 move;

void Update()
{
    // move with keyboard
    float x = Input.GetAxis("Horizontal");
    float y = Input.GetAxis("Vertical");

    Debug.Log(x);
    Debug.Log(y);

    move = new Vector2(x, y);

    Debug.Log(move);

    note.transform.Translate(move * 1 * Time.deltaTime);
}

I check my configuration in the project settings and input manager:

But I"m confused about three things:

• Why do I have 2 declarations for Horizontal and Vertical input?

• Why does my Keyboard not move the square, even though I have the config ready and I'm using matching strings in my code?

• Why does the Debug.Log always report (0, 0)?