You can create tabs in two different ways:

1. Using a Page, shown on all product pages.
   
   or

2. Using a Page, shown only on products tagged with a utility tag.

This is the easiest option to set up and is useful for general product information like shipping and return policies, universal size charts, and anything else that applies to your entire product line.

To set these tabs up, first browse to a product template in the theme editor. Once viewing the product template page, add a Tab block under the Product section. This tab and the content you include in the block settings will appear for all products assigned to use this template.

Here's a video that shows you step-by-step how to set up custom product tabs using metafields so that they appear only on specific product pages.