Hi @cymorg1,
I'm afraid there is no way to detect whether a specific flow is one of the test flows. The best approach I can find is:
1\ Manage a test environment;
2\ Create solutions within this environment;
3\ Create flows and test them in the solutions;
4\ Export the solution as a managed solution and import to production environment, turn off the flow in test environment.
5\ You will be able to edit, modify and test the flow in the test environment, once completing the test procedure you can export the solution and update the flow which in the production environment.
Hope this helps.
Best regards,
Community Support Team _ Jeffer Ni
If this post helps, then please consider Accept it as the solution to help the other members find it.