Meta Box + FacetWP + User Post Type

Hello,
I saw that it is possible to add to FacetWP an extension called "User Post Type" (https://facetwp.com/add-ons/user-post-type), which seems to add a post (custom type) for each user, keeping them synced in order to create user listings and filter users like any other post type.
I wonder if Meta Box works even with that extension of FacetWP, because I need to display a filtered list of users and custom fields in their profile.

Thanks,
Lorenzo