Why does fortnite show size of 27 GB everytime an update come?

Wait... The download size on Xbox Live says before i download that the file size is going to be 7,21 GB.

How can it be bigger than originally? And why does it happen everytime i re-download?

Does anyone know if game updates or some add on’s such as fortnite save the world add on show up in the file size ? Or if system updates take up more storage space as well? It’s just weird loosing like 8 Gb that I don’t know where it is. I only have games downloaded no media streaming apps at the moment. I’m also curious as to how much space gets used for a profile and game caches?

I bought the digital version of ForzaHorizon 5 - it's installed, it takes up over 100 GB on the disk - the game works and it's ok, BUT once a month there is an update of the console system, then to play ForzaHorizon 5 you have to download the game update (the game says it needs to be updated) and so every month it updates 14 GB ... however, the size of the game on the disk does not change.... But why does the game itself have to update after every console update?

It does say that the pre-configured 8 gb storage device comes with it. Perhaps you're right that it is only included with that size.

if this is the right size of the files so why do other people show 10 GB at least?

before the update - i succeeded to play - now nothing...not any mode

I have all the 9 DLC packs.

what do I need to from hare!?