Full form of Google EAT: Expertise, Authoritativeness ,Trustworthiness
Google is the world's largest search engine. That's why Google wants that the information it reaches people is absolutely correct. And written by the right people. Now the question comes that how will Google know whether the person who is writing content on a blog is right to write content on that blog or not.
To find out this, Google updated its algorithm and removed the EAT concept. According to Google, whatever content we publish on our website, it is to be published only by following the guideline of EAT, which will benefit in ranking.