Managing GG with a wheelbarrow?

Question

Unity

Task: to organize the management of the GG with a finger.
I was only able to do this:

if (Input.GetMouseButton(0))
                    {
                        Vector3 mousePosition = MainCamera.ScreenToWorldPoint(new Vector3(Input.mousePosition.x, Input.mousePosition.y, MainCamera.transform.position.y));
                        _rb.MovePosition(new Vector3(mousePosition.x, 0.0f, mousePosition.z));
                    }

GG moves to the point of pressing and follows the finger.
It is necessary that the GG does not move to the touch point, but moves parallel to the movement of the finger across the screen.

Answer 1

You need to take the delta between the moment the screen is touched and the current position of the finger and add this delta to the current position of the character.