The name of the Gutenberg block is Tracking Form. It can be found in its own category/section called Order Tracking. Alternatively, when you add a new block, you can just search for tracking or Tracking Form and add that block to the page.
You will see the following option in the right sidebar:
- Show Orders?: This lets you choose whether or not you want to show all orders. Choosing Yes will display all orders in a list, instead of the input to enter and search for an order number.