Test WC Products in transient

function test_transients() {
    // Set the transient key
    $transient_key = 'my_products_transient';

    // Check if the transient exists
    if ( false === ( $products = get_transient( $transient_key ) ) ) {

        // If the transient does not exist, retrieve the products and store them in the transient
        $products = wc_get_products( array(
            'status' => 'publish',
            'limit'  => 5,
        ) );

        // Set the transient with a 1-hour expiration time
        set_transient( $transient_key, $products, 60 * 60 );
    }

    // Now you can use the $products array, which may have been retrieved from the transient or queried and stored in it
    echo '<ul>';
        foreach( $products as $p ) {
            echo '<li>'. $p->get_name() . '</li>';
        }
    echo '</ul>';

}
add_action( 'init', 'test_transients' );