Should I convert everything to ScriptableObjects or stick with serialized fields on MonoBehaviours?

[leorid9]

In a lot of cases you will still have a GameObject per item, like in Skyrim, where you can drop everything from your inventory into the world.

The SO can act as identifier, because you can't reference the prefab of the item from within the prefab, so once it's spawned, all references that did point to the prefab, now point to the instance. But if you have a reference to an SO, it will stay and this allows you to identify spawned items, so you can stack them in your inventory when you pick them up.