In SharePoint you can link the quick launch bar to a page or a control such as a calendar or a document library. Regardless of their type, all of these have a title element that helps you to identify where you currently are.
To edit your site’s Master Page you’ll need to use SharePoint designer 2013. You can have a look at the step-by-step instructions for backing up and editing a Master Page template here: https://jwcooney.com/2017/06/30/customizing-the-top-bar-in-sharepoint-2016-on-premesis/
Finding Where SharePoint Holds the Title
SharePoint sets the page or control title as a hyperlink with no id attribute. It is embedded several levels deep inside of a parent span tag that goes by the id of ‘DeltaPlaceHolderPageTitleInTitleArea’
Here is an example of what the HTML looks like that holds the title if you were to view the source markup of a SharePoint page.
<span id="DeltaPlaceHolderPageTitleInTitleArea"> <span><span> <a title="Control Title" href="/SiteURL/Lists/calendar.aspx">Control Title</a> </span></span> </span>