Reproduction and evolution is arguably literally how biology forks. You can also think of it as a tree of consciousness. Cloning would probably work the same in regards to consciousness. My clone would be a distinct branch of consciousness.
There’s little reason to think thought experiment level precision of cloning/duplication and teleportation are at all physically possible though.
So in reading your comments of this post, I feel like I am reading comments made by a clone of my own mind. Though you articulate my views better than I can. This particular comment you make, I don’t think it gets The attention it deserves. It was pretty revolutionary for myself when I learned to think of almost every worldview at a model of reality. It’s most revolutionary when one realizes what is arguably an outdated Newtonian view to fall into this category of model. It really highlights that actual reality is at the least very hard to get at. This is a severe an issue with regards to consciousness.