Quick action opens automator
Your workflow receives No input in any application. Quick Actions are designed to run only on the type of file (or other object) that is currently selected. So I'm surprised that it shows up at all. Presumably Automator opens it because it "no input" is the default of an empty or unfinished workflow.

As your workflow doesn't require an input, (i.e. any given file as an argument), but just copies a specific file, then an application is a better choice.