Woocommerce products are not displayed on front-end . No products were found matching your selection [closed]

WooCommerce products have a lot of metadata. Give a look at this answer to see most of them.

In your case it seems that the problem is the missing _visibility.

Did you already try something like this?

$item = [
    'post_title' => $product['name'],
    'post_status' => 'publish',
    'post_type' => 'product',
];
$postId = wp_insert_post($item);
update_post_meta( $postId, '_visibility', 'visible' );