This members-only tutorial shows how the built-in Dynamic Data condition of Oxygen can be used to output elements only if the current post has at least 1 term in the specified taxonomy.
Example: Let's say you are showing the list of presentations (a custom post type) using a Repeater and you want a Div to be output only if the presentation has one or more presentation categories (custom taxonomy) ticked.
Add a condition to your desired element.
Select Dynamic Data from the "Other" category, then Advanced > PHP Function Return value.