FacetWP is an advanced filtering plugin for WordPress. It lets you build smart filters based on attributes of your content (categories, tags, metadata, publish date…).
By default it applies only to the main query on the page, but it can also be applied to custom queries (more information).
The code below will let you use your FacetWP filters with Display Posts by adding facetwp="true"
to your shortcode.
Here’s a video of the categories filter being used with Display Posts:
This code snippet goes in a core functionality plugin or Code Snippets.
Filters used:
display_posts_shortcode_args