Thank you Jeroen for your precious advise,
I have found this function:
/*
** Remove "Products" from Yoast SEO breadcrumbs in WooCommerce
*/
add_filter( 'wpseo_breadcrumb_links', function( $links ) {
// Check if we're on a WooCommerce page
// Checks if key 'ptarchive' is set
// Checks if 'product' is the value of the key 'ptarchive', in position 1 in the links array
if ( is_woocommerce() && isset( $links[1]['ptarchive'] ) && 'product' === $links[1]['ptarchive'] ) {
// True, remove 'Products' archive from breadcrumb links
unset( $links[1] );
}
// Rebase array keys
$links = array_values( $links );
// Return modified array
return $links;
});
and now, after I have added the function the result is:
{"@type":"BreadcrumbList","@id":"https:\/\/nnhotempo.it\/tempo-libero\/cyclette\/diadora-racer-23\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"item":{"@type":"WebPage","@id":"https:\/\/nnhotempo.it\/","url":"https:\/\/nnhotempo.it\/","name":"Home"}},{"@type":"ListItem","position":2,"item":{"@type":"WebPage","@id":"https:\/\/nnhotempo.it\/shop\/","url":"https:\/\/nnhotempo.it\/shop\/","name":"Prodotti"}},{"@type":"ListItem","position":3,"item":{"@type":"WebPage","@id":"https:\/\/nnhotempo.it\/tempo-libero\/cyclette\/diadora-racer-23\/","url":"https:\/\/nnhotempo.it\/tempo-libero\/cyclette\/diadora-racer-23\/","name":"Diadora Racer 23"}}]}
Should be fine now for Google SERP.. what do you think Jeroen?