The Loop Builder enables you to create and design the main item for repeating content (i.e. loops) such as listings, as well as customize its layout on the page. By creating a main item template yourself, you get a lot more flexibility compared to the Posts widget to design your listings and include additional dynamic content. Read these articles for all details:
https://elementor.com/blog/introducing-the-loop-builder/
https://elementor.com/help/how-do-i-build-a-loop-grid/
How to edit the main item template of the Selected Work portfolio loop?
Edit the page with Elementor:
Or, you can directly edit the Portfolio Studio loop template:
All of the main item's elements are dynamic tags (https://developers.elementor.com/docs/dynamic-tags/), so they pull the individual content of each post/page:
How to edit the Selected Work portfolio loop template's query?
Edit the page with Elementor > Open the Query tab and edit the source, order, etc.
How to edit the Selected Work portfolio loop posts?
You can access all the "Portfolio" category posts:
Next, edit each post with Elementor:
Open the post settings and edit the "Title", "Excerpt" and "Featured image":
