@aeleas I haven’t tested it, but velocity is a Vector3. If you look at the answer for the first link you’ll see something like this:
// to leave y-speed as it was:
rigidbody2D.velocity.y = MOVE_SPEED;
// or to make object move only to the right:
rigidbody2D.velocity = Vector2.right * MOVE_SPEED;
Vector2 predictedPoint = new Vector2(transform.position.x, transfomr.position.y) + rigidbody2D.velocity * Time.deltaTime;