Hello,
Description – is the main description on the product page.
Reviews are disabled in the Woocommerce > Settings > Product. It is not editable.
Additional tab (with the attributes) enter each attribute in the product page and disable showing on the product page. Not editable.
Additional tab (Shipping information) You can edit it in the Theme Settings > Single page > Tabs:
You will find the option to add more global tabs it means all the content added will be visible on all the products.
In addition, there is an option to add individual tab in the product page: https://xtemos.com/docs/woodmart/product-page-options/#local_settings
Best Regards