What happens when one reaches the center of the universe

After a few cinematics you are sent into a new galaxy. Other than that, nothing really special shows up. The uploader goes into more detail here:

As far as I can tell, going to the center of the galaxy just takes you to a new galaxy. The new galaxy doesn't seem all that different from the first apart from there being more expensive ships to purchase. Example: near the center of the first universe, the most expensive ship I found cost 18 million. Galaxy 2's most expensive ship has been around 40 million. The Atlas path doesn't seem to have really done anything either apart from letting me see black holes super easy. Apart from that, I can't tell too much difference between taking the Atlas path and not taking the Atlas path. Again, I have no idea 100% whether or not I missed something or if there's another trigger for a different ending. This is just what I personally experienced.

The uploader's video: