“Display new / update topic count in title” is not quite right. It’s actually
Display new / updated topic count in topic lists, and unseen reply count in topics
But that’s turning into a bit of an essay. I’m struggling to come up with a more concise version… Maybe
Display unread notification count in title
Display contextual counter in title
Also, which option would you like as the default? (Given that most people will never bother to change this).