This is a custom module that will show all the articles matching exactly the same tags you want. Simple.
And shows the list as an unordered list with the classes used in Yootheme Pro. You really don't need documentation as it only asks you for the tags.
This is done for PHP 7.1 or better and Joomla 3.X
And here's the link! mod_biguptags.zip
When? Soon, calm down. Or edit the file, it's free anyways.