Is there a standard recovery procedure if you accidentally cause a flow that keeps crashing the console before you can fix it and deploy again? I assume that his is why the backup flow is created but I can't seem to figure out how to use it. Sorry for the newbie question.
You can rename the failing flow and rename the backup to be the live flow.
If all else fails, you should be able to rename the live flow, restart - creates a blank flow. Copy the text from the live flow and import it back in, delete what you think is causing the issue before deploying changes.