These games are officially small in size, ensuring they install and run correctly without needing "highly compressed" unofficial versions:
Moreover, AI texture upscaling (like NVIDIA's RTX Remix) allows modders to compress textures aggressively, then upscale them on-the-fly during gameplay—meaning future repacks could be under 500MB while looking 4K.
Before you start downloading, it’s crucial to understand the technology behind that 1GB file turning into a 5GB game.