Custom bi-directional relationship query

How To
1

Does anyone know how to write a customer bi-directional relationship query?

I want to query associated reviews for items in my cart on the checkout page. This is not working

$product_ids = [];

foreach ( WC()->cart->get_cart() as $item ) {
    $product_ids[] = $item['product_id'];
}

if ( empty( $product_ids ) ) {
    return null;
}

return new WP_Query([
    'post_type' => 'review',
    'posts_per_page' => -1,
    'meta_query' => [
        [
            'key' => 'reviews_to_products', // ACF relationship field
            'value' => array_map('strval', $product_ids),
            'compare' => 'IN',
        ]
    ]
]);