Google has Deprecated The Critic Review SERP Featurehttps://developers.google.com
A critic review is a snippet from a longer review article that a single editor has created, curated, or compiled for a publisher. Critic reviews appear in Search results with a snippet from the critic, the critic’s name and the publisher icon, helping your readers to easily find the reviews and navigate to your website to read the complete reviews. You can supply critic reviews for the following content types:
In Google’s test, they found that this particular markup wasn’t useful for the ecosystem at scale, so they are dropping support for it.