Reviews rarely arrive on their own. A customer is happy, then busy, then gone. I would rather send a short link a few days after the product arrives, when they have really used it.
Before you send it
Pick the moment: late enough that the customer has an opinion. Say in the form description where reviews will appear. Ask everyone who bought, not only the happy ones, or your page will read as one-sided.
While it is open
Customers give a rating, a headline, a short review, a value rating and good and bad points. An optional link replaces photo uploads. The consent box asks if you may show the review on your site. A visitor's AI might ask "Which product are you reviewing?" Then "How would you rate it from 1 to 5?" Then "What was good and what could be better?" It shows the answers and sends only after a yes. See agent-fillable forms.
After it closes
Filter the consent column before you publish anything. Read the low scores first, and reply to problems directly. Send reviewers a trial item through a sample request form when you launch something new, and move damaged-product cases to a warranty claim form. More ideas are in forms for Ecommerce and Shopify stores.
Questions
How do I choose which reviews to publish?
Use only the rows where the consent box is ticked. Download the CSV, filter that column, and copy the text as written. Do not change what people said.
Can reviews include photos?
Not as uploads. The form takes a link to a photo kept elsewhere. Ask people to paste a shared album or image link into the photo box.
Can one form cover many products?
Yes. The product name is a question, so one link covers your whole range. Group the CSV by product name to compare them.