Hi,
As I mentioned above:
If you add the review from the form by clicking on the button “Add a review” in the summary bar, it would be a shop review. Currently, our plugin only supports submitting shop reviews from the all reviews shortcode.
screenshot https://imgur.com/LxJZ12O
You can add a product to the Cart > Complete the checkout > Go to admin area > Edit the order and mark the order status as Completed > Send the review reminder > Submit a review to see the product review on the product page.
Or you can use the shortcode [cusrev_reviews]
to display the default reviews section and a review form on the product page. After you submit a review on the product page, it is the product review and displayed there.