Adds a [display_attributes] shortcode that will display all the terms for each attribute. Use [display_attributes attributes="some_taxonomy"] to show a particular attribute's terms.

wc-attributes-shortcode.php

<?php
/**
* Plugin Name: Attributes shortcode
* Plugin URI: https://gist.github.com/helgatheviking/1d34f84fc93b8a08c258a37768802625
* Description: Create a shortcode to display product attribute taxonomies
* Version: 6.8.0
* Author: Kathy Darling
* Author URI: https://kathyisawesome.com/
*
* Requires PHP: 7.4
*
* Requires at least: 5.8
* Tested up to: 5.8
*
* WC requires at least: 5.8
* WC tested up to: 6.0
*
* Copyright: © 2022 Kathy is Awesome
* License: GNU General Public License v3.0
* License URI: http://www.gnu.org/licenses/gpl-3.0.html
*/

/**
 * Attributes shortcode callback.
 * 
 * Attributes {
 * 		@param 'attributes' => string - specific attributes to display, separated by | character. Defaults to all attributes.
 * 		@param 'show_list'  => string "true" or "false" - Display as unordered list <ul>. Defaults to true.
 * 		@param 'show_label'  => string "true" or "false" - Prepend with taxonomy label. Defaults to true.
 * 		@param 'show_links'  => string "true" or "false" - Wrap terms with link to term archive. Defaults to true.
 * } 
 * 
 * Example: [display_attributes] to show all atttributes as a list with links, and labels.
 * Example: [display_attributes attributes="color" show_links="false"] to display single attribute without links.
 */
function kia_attributes_shortcode( $atts ) {

    global $product;

    if( ! is_object( $product ) || ! $product->has_attributes() ){
        return;
    }

    // parse the shortcode attributes
    $args = shortcode_atts( array(
        'attributes' => array_keys( $product->get_attributes() ), // by default show all attributes
		'show_list'  => 'true',
		'show_label' => 'true',
		'show_links' => 'true',
    ), $atts );

    // If receive an attributes param, turn into array.
    if( is_string( $args[ 'attributes' ] ) ){
        $args[ 'attributes' ] = array_map( 'trim', explode( '|' , $args[ 'attributes' ] ) );
    }

    // Start with a null string because shortcodes need to return not echo a value.
    $html = '';

    if( ! empty( $args[ 'attributes' ] ) ) {

        foreach ( $args[ 'attributes' ] as $attribute ) {

            $terms_list = '';

            // Get the WC-standard attribute taxonomy name.
            $taxonomy = strpos( $attribute, 'pa_' ) === false ? wc_attribute_taxonomy_name( $attribute ) : $attribute;

            if( taxonomy_is_product_attribute( $taxonomy ) ) {

                // Get the attribute label.
                $attribute_label = wc_attribute_label( $taxonomy );

				if ( 'true' === $args[ 'show_links' ] ) {
					$before = $args[ 'show_label' ] ? $attribute_label . ': ' : '';
					$after = '';
					
					if ( 'true' === $args[ 'show_list' ] ) {
						$before = '<li>' . $before;
						$after = $after . '</li>';
					}
					 
					$html .= get_the_term_list( $product->get_id(), $taxonomy, '<li class="bullet-arrow">' . $attribute_label . ': ' , ', ', '</li>' ); 
				
				} else {

					// Get the terms.
					$terms = get_the_terms( $product->get_id(), $taxonomy );

					if ( $terms ) {
						$last_key = array_key_last( $terms );
						// Build the terms list.
						foreach ( $terms as $i => $term ) {
							if( is_wp_error( $term ) ) {
								continue;
							}

							$terms_list .= $term->name;
							$terms_list .= $last_key === $i ? '' : ', ';
						}

						// Prepend tax label.
						if ( 'true' === $args[ 'show_label' ] ) {
							$terms_list = $attribute_label . ': ' . $terms_list; // Currently only LTR languages.
						}

						// Wrap in <li> markup.
						if ( 'true' === $args[ 'show_list' ] ) {
							$terms_list = '<li>' . $terms_list . '</li>';
						}

						// Build the html string.
						$html .= $terms_list;

					}

				}

            }

        }


        // If we have anything to display, wrap it in a <ul> for proper markup
        if( $html && 'true' === $args[ 'show_list' ] ) {
            $html = '<ul class="product-attributes">' . $html . '</ul>';
        }

    }

    return $html;
}
add_shortcode( 'display_attributes', 'kia_attributes_shortcode' );