Bert google algorithm has nothing to do with seo, it especially designed to support the search to understand better the context of words in searches and improve match those queries with most related information of results.
Bert is a natural language processing pre-training approach that can be used on a large body of text. It handles tasks such as entity recognition, part of speech tagging, and question-answering among other natural language processes. Bert helps Google understand natural language text from the Web.
One of the ways that I learnt to speak English was to watch Sesame Street on t.v. when I was a child. My favorite characters were Bert and Ernie. So now you know what Bert is.