Is it hard to reduce file size in mobile?

[76561198967295113]

Understand limbus build on PC base, not mobile.
But wonder how difficult to reduce file size in andriod/ios, or is it impossible since Unity (game engine) not have this feature.

For example, option to remove "Story Voice" files from past chapter. (User can re-download when they want re-read the story)

[teamol]

Definitely possible, but it might take them a big refactor if voice files were from start packed altogether. They will have to separate bundles and QA through the whole game to make sure the voices are correctly pointed to new places.

10gb seems good enough for me though