How to pull Jetpack testimonials

Hello all,

I am trying to utilize the Jetpack Testimonials function within WordPress. I would much rather use Enfold’s, but at the moment, it is not database-driven, and thus has to be configured on each instance, rather than pulling from a central place.

That said, I have enabled Jetpack’s testimonials and have been able to hook Gravity Forms into it, for submission. But, as I work to display those records, I am having a hard time getting ALB to find that CPT and display it for selection in post slider, or other ALB elements. I have added the function to link the post type, but cannot seem to find success in retrieving anything beyond the standard post types.

https://kriesi.at/documentation/enfold/intro-to-layout-builder/#alb-for-any-post-type

function avf_alb_supported_post_types_mod( array $supported_post_types )
{
  $supported_post_types[] = 'jetpack-testimonial';
 return $supported_post_types;
}
add_filter('avf_alb_supported_post_types', 'avf_alb_supported_post_types_mod', 10, 1);

Any suggestions/