Hi K123,

Thanks for reaching to us.

First of all, take my apologies for the delay in answering because of the weekend.

Unfortunately, there is no way to do that without customization. Please refer to this article https://woo.com/document/editing-product-data-tabs/

If you want to add more than 3 tabs and all of these are static information, then you can combine with 2 additional tabs in Product Setting of Single Product https://prnt.sc/RQPGowgjDQP2

The linked you provided using Custom WooCommerce Builder layouts, which is part of WooCommerce builder from WoodMart.

Here below are the documentation articles:
https://xtemos.com/docs-topic/woodmart-woocommerce-layout-builder/
https://xtemos.com/docs-topic/single-product-page-builder/

Regards,