Filter to limit or trim product title using characters or words except on Single Product Template

functions.php

<?php
add_filter( 'the_title', 'shorten_woo_product_title', 10, 2 );
function shorten_woo_product_title( $title, $id ) {
    if (!is_singular(array('product')) && get_post_type($id) === 'product') {
         // return substr( $title, 0, 30) . '…'; // change last number to the number of characters you want
         return wp_trim_words($title, 4); // last number = words
    } else {
        return $title;
    }
}