From a technical standpoint, the windows NTFS filesystem is designed inherently case sensitive, just windows doesn’t allow creating case sensitive files.

Connecting an NTFS drive to linux, you can create two separate files readme.txt and Readme.txt.

Using windows, you can see both files in the filesystem, but chances are most (if not all) software will struggle accessing both files, opening readme.txt might instead open Readme.txt or vice versa.

I can See this possibly being useful for having a walkthrough playing during the game