Does remote setting load everything at once and save it?

I'm very confused with the explanation of remote settings on unity manual.
I thought unity gets data when I use functions such as GetInt or GetFloat but when I actually use remote settings, it seems like everything on unity dashboard is loaded at the beginning of the scene.
And also is it normal that Updated or Completed is called even before BeforeFetchFromServer is called?

So I think when the game starts, Updated or Completed is called once whether it's done or not then unity loads everything from unity dashboard and save it in cache and when it's done, Updated or Completed is called.

Am I right?
Can someone please clarify this thing?

 

Are you talking about the behavior in the Editor, or in your code, on a device? And can you elaborate, "seems like..", can you share a screenshot?