Shortcode 'get_post_type_name' to get post type name/slug on single post pages and inside post listings. Accepts the parameter 'display' with 2 values = "name" and "slug". "name" returns CPT name, "slug" returns CPT slug. Example: [get_post_type_name display="name"]

get_post_type_name.php

<?php

add_shortcode( 'get_post_type_name', 'get_post_type_name' );

function get_post_type_name( $args ) {

	$display = $args['display'];
	
	if ( ! $display ) {
		return 'No data found';
	}
	
	$post_id = jet_engine()->listings->data->get_current_object_id();
	
	$result = '';
	
	switch ( $display ) {
		case "slug":
			$post_type_slug = get_post_type( $post_id );
			If ( $post_type_slug ) {
				$result = $post_type_slug;
			}
			break;
		case "name":
			$post_type_name = get_post_type_object( get_post_type( $post_id ) );
			if ($post_type_name) {
				$result = esc_html($post_type_name->labels->name);
			}
			break;
	}
	
	return $result;
	
}