Why Fortnite Update on PC more GB than on Ps4?

Ps4: 3.2 GB

PC: 27.3 GB

Ask that the developers at Fortnite.

In any case, a full game installation seems to be downloaded for the PC every time, while the PS4 probably only loads the data that differs from the currently installed version.

This can also be related to the fact that with the PS4 you know exactly what the hardware looks like on which you are installing the update. It has to run on thousands of individual configurations on the PC.

Because the PC version is simply bigger overall, because there are much better graphics, shaders, etc. Available. Something like that pulls memory.

That with the PS4 you know exactly what the hardware looks like on which you are installing the update. It has to run on thousands of individual configurations on the PC.

That is exactly the reason.