How to sign out and remove your Google Account from Safari

I just left my company about a month or so, which i made a mistake login my personal account to work macbook. Even though i already logout from the mac before handing it back to IT before my leave, somehow the default account on safari is still the google workspace account which is now already deactivated. So how do i removed that account to login back to my main personal account?

[Re-Titled by Moderator]