How to copy a prefab without adding it to the scene?

Question

Unity

In general, there is a DebugSystem that stupidly allows you to open the scene without going through the stages of character creation. She has a link to a prefab to use for this. The problem is that when adding a component to this prefab, the unit modifies the pref itself, and if you do Object.Instantiate, then it appears on the stage, and another system should do this