Features like OneDrive, Xbox Integration, Your Phone, and redundant system languages.
The primary motivation is performance. While Microsoft's minimum requirements for standard Windows 10 are a 1 GHz processor, 1 GB of RAM (for 32-bit), and 16 GB of storage, the real-world user experience on such low-end hardware can be frustratingly slow. The appeal of these Lite versions is that they can run well on computers that would otherwise struggle to boot the full OS.
Sometimes paused, delayed, or stripped entirely to prevent Microsoft from re-installing deleted components. Why Do Users Look on Archive.org?
Head to Archive.org and search: "Windows 10 Lite x86 Ghost Spectre" to start with the most stable community build available today.