Limit the number of words used in bread "crumbs" in Yoast SEO

limit-wp-seo-breadcrumb-words.php

<?php
/**
 * Limit the number of words output in a Yoast SEO bread "crumb"
 * 
 * @param array $crumb The current "crumb" URL and text
 * 
 * @return array
 */
add_filter('wpseo_breadcrumb_single_link_info', function($crumb) {
    $word_limit = 3;
    $crumb['text'] = wp_trim_words($crumb['text'], $word_limit);

    return $crumb;
});