Add a [pmpromd_user_field] shortcode that displays User Field values on the Member Directory "Profile" pages.

my_pmpromd_profile_user_field_value_shortcode.php

<?php
/**
 * Add a [pmpromd_user_field] shortcode to display User Field values on the
 * Member Directory Profile pages.
 * 
 * Usage: [pmpromd_user_field field_name="your_field_name"]
 * 
 * This is an advanced customization recipe that may require further development
 * to suit specific needs and/or setups. For more details, please see: 
 * https://www.paidmembershipspro.com/developers/
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 * 
 */
function my_pmpromd_profile_user_field_value_shortcode( $atts ) {
	global $pmpro_pages;

	// Get shortcode attributes.
	$atts = shortcode_atts(
		array(
			'field_name' => '',
		),
		$atts
	);

	// Bail if no field name is provided.
	if ( empty( $atts['field_name'] ) ) {
		return '';
	}

	// Bail if Member Directory Add On is not active.
	if ( ! function_exists( 'pmpromd_get_user' ) ) {
		return '';
	}

	// Bail if not on a Member Directory Profile page.
	if ( empty( $pmpro_pages['profile'] ) || ! is_page( $pmpro_pages['profile'] ) ) {
		return '';
	}

	// Get profile user.
	$user = pmpromd_get_user();

	// Bail if we can't get the user.
	if ( ! $user ) {
		return '';
	}

	// Get and return the user field value.
	$value = get_user_meta( $user->ID, $atts['field_name'], true );
	return esc_html( $value );
}
add_shortcode( 'pmpromd_user_field', 'my_pmpromd_profile_user_field_value_shortcode' );