Is it possible to anonymously leave online reviews for businesses?

I was asked by a few of my local restaurants/businesses/apartments to leave them a review online. I would really like to support them but I don’t want to have my review traced back to me especially for Google reviews. Even if I use a pseudonym, can’t I still be tracked since all of the restaurants or businesses or apartments I review are in a specific location? Even if I have a VPN I mean how hard would it be to figure out “you post a lot of reviews for restaurants in gotham city you must live in gotham city.” And it’s nearly impossible to get a Google account without a legitimate phone number. Anyone else have success with this or you just don’t leave reviews?