How to remove the Title articles from the Popup Anywhere Plugin
Go to the plugin and Basic Parameters URL:
index.php?option=com_content&view=article&tmpl=component&id=123
Add &Itemid=101 at the end
index.php?option=com_content&view=article&tmpl=component&id=123&Itemid=101
The 101 refers to the Menu Manager ID which in this case refers to Home > Articles but should you change the article in the popup, match that to whatever is the Menu item ID.