function kb_get_product_group_items($product_id)
{
    $terms = wp_get_post_terms(
        $product_id,
        'kb_product_group'
    );

    if (empty($terms) || is_wp_error($terms)) {
        return [];
    }

    $group = $terms[0];

    $posts = get_posts([
        'post_type'              => 'product',
        'post_status'            => 'publish',
        'posts_per_page'         => -1,
        'post__not_in'           => [$product_id],

        'tax_query' => [
            [
                'taxonomy' => 'kb_product_group',
                'field'    => 'term_id',
                'terms'    => $group->term_id,
            ]
        ],

        'no_found_rows'          => true,
        'update_post_meta_cache' => false,
        'update_post_term_cache' => false,
    ]);

    $items = [];

    foreach ($posts as $post) {

        $product = wc_get_product($post->ID);

        if (!$product) {
            continue;
        }

        $items[] = [
            'id'   => $post->ID,
            'card' => kb_get_product_loop_data($product),
        ];
    }

    return $items;
}
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