Hello,
As you know the pages that come from WooCommerce end aren’t editable with the page builders directly so it wouldn’t be possible to move the content position on it according to our own choice.
But under the WoodMart Theme, using the Theme’s Layout Builder you can create Custom Layouts for WooCommerce pages like Shop, Category, Single Product page, Cart and Checkouts. So, you can use that to create your own custom layouts for these pages.
So, in your case specifically you can try creating a Custom Layout for Checkout page and adjust the content position on it according to your choice.
Further, you can read more about the Layout Builder here: https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
Hope this helps !
Best Regards.