Is it possible for a web site (such as to infer the first & last name of the google account I’m currently logged in with?

Last week, I created a burner Google account so that I could subscribe to youtube channels without that information being associated with my “real” account. The fake name I used was “Sam Hopkins”.

Today I was reading something on, saw a recommended post on the right hand-side, and clicked on the post. The first comments on the page were an exchange with a user named Sam Hopkins.

Is this just a coincidence?