That's interesting... I've been running AC exclusively in VR (minus some quick pancake testing here and there to check shader settings on some WIP mods and the like), and not once have I ever seen any of the images in that folder. Through both my old Rift CV1 or my Quest 2. Usually I get a great big pixely green oval with an exclamation mark or a stretched, pixelated broken image icon during loading. Very occasionally I'll get a custom CSP loading screen. Never anything in that folder, though.