I was at a store called The Source here in Canada and when I went to look at the LG G8's internal storage, the G8 said that it was using 120gs of the 128gs. Is it usually the case that the pre-installed apps and the operating system (OS) take up 120gs and only leave you with 8gs of internal storage before adding your own choice apps? Or is most of that 120gs used part of the mobile commercial advertising app to show off the LG G8? I know that you can slip in a 1 terabyte SD card in the SD card slot.