There are several ways to pass data between reusable elements and the page where they’re used. You can use the main property when adding additional properties to the reusable, custom states, URL parameters, and even trigger custom events from the page into the reusable. In more advanced cases, it’s also possible to send data from inside the reusable back to the main page using basic JavaScript with the Toolbox plugin.
If you’re planning to build larger, scalable, and maintainable applications, learning how to properly use reusable elements is absolutely essential. I highly recommend reading this article:
As for the opinion that organizing workflows into folders or renaming them is a waste of time — that’s your choice, but please don’t say it’s pointless, because it definitely isn’t.