Google has a lack of diversity in the workforce, both ethnic and gender. This has led to comments and behaviors considered inappropriate. Unconscious bias refers to the stereotypes, both negative and positive, that exist in our subconscious and affect our behavior. Here's an article.
My initial thought was about Google Shopping. 🤔 The products shown are from companies that provide Google with financial compensation. Users don't get a wide view on the Shopping Tab, and can't do a good comparison shop. It's biased for those who pay Google. But that may just be my gripe.