Unauthorized ISOs are a classic vector for keyloggers, remote access trojans (RATs), cryptocurrency miners, or hidden botnet nodes. The user has no way to verify what was added.
If you are looking for a lightweight but official Windows experience, consider: microsoft.windows.10.pro.1903.lite.version.64 bit
Using unofficial "Lite" versions involves significant trade-offs, particularly regarding security and stability. Windows 10 Home and Pro - Microsoft Lifecycle Unauthorized ISOs are a classic vector for keyloggers,
Windows 10 Pro 1903 Lite is a viable option for businesses, organizations, and users with low-end hardware who need a reliable and efficient operating system. However, users should be aware of the potential limitations and compatibility issues. If you're looking for a lightweight and feature-rich operating system, you might want to consider other options or evaluate the trade-offs of using a Lite version. Windows 10 Home and Pro - Microsoft Lifecycle
Deletion of bloatware, telemetry, Cortana, Windows Defender (sometimes), and built-in apps like OneDrive or the Microsoft Store.