Is it possible to anonymously leave online reviews for businesses?

A follow up question I have is: what and from from whom you’re trying to stay private or even anonymous? Are you trying to ensure the establishment doesn’t know who you are? Whom are you trying to safeguard from being tracked? In my view, if you want to leave a review, you can pseudonymously. It can be private enough but won’t be anonymous because the review platform may still know who you are. I personally don’t leave reviews. My repeated visits to the establishment is how I like to show my appreciation.