How to change related product easily in WooCommerce on single product page.

change-related-product-number.php

<?php 

/**
 * @snippet       Change related product number at single proudct page | WooCommerce
 * @author        WooXperto
 * @date          16.08.2023
 */


if( !function_exists("wooXperto_change_related_products_number")){
  function wooXperto_change_related_products_number($args){
    $args["posts_per_page"] = 5; // number of products 
    $args["columns"] = 5;
    
    return $args;
  }
}

add_filter("woocommerce_output_related_products_args","wooXperto_change_related_products_number",444,1);