Joomla category blogs are designed to display articles from a specific category. It's also possible to display articles from a specific category and limited to specific tag or tags.
There are two blog options when creating a menu in Joomla:
Category Blog
The default Joomla category blog with no customizations.
UAB Category Blog
A customized version of a category blog that allows you to more easily create common layouts such as people directories and news pages.