loadProductReviews example

if ($productConfig->isMapped() && $resolverContext instanceof EntityResolverContext) {
            $product = $this->resolveEntityValue($resolverContext->getEntity(), $productConfig->getStringValue());
        }

        if ($productConfig->isStatic()) {
            $product = $this->getSlotProduct($slot, $result, $productConfig->getStringValue());
        }

        /** @var SalesChannelProductEntity|null $product */
        if ($product !== null) {
            $data->setProduct($product);
            $data->setReviews($this->loadProductReviews($product, $request, $resolverContext->getSalesChannelContext()));
        }
    }

    private function loadProductReviews(SalesChannelProductEntity $product, Request $request, SalesChannelContext $context): ProductReviewResult
    {
        $reviewCriteria = $this->createReviewCriteria($request, $context);
        $reviews = $this->productReviewRoute
            ->load($product->getParentId() ?? $product->getId(), $request, $context, $reviewCriteria)
            ->getResult();

        $matrix = $this->getReviewRatingMatrix($reviews);