Hi Rihei,
Desktop, Documents, and Downloads considered "special" those are actually what Windows calls known folders or shell folders. They have special behavior tied to the operating system, and Windows uses desktop.ini to manage their appearance, icons, and localized names. So if you rename, customize, or move these folders, it might trigger a new desktop.ini file, or modify an existing one. This happens even if you didn’t touch any folder settings manually.
For plain folder like C:\Projects thats a good example of a plain or "regular" folder. If you create C:\Projects yourself, and then add new folders inside (like C:\Projects\2025 or C:\Projects\Reports), those are just standard folders. They are not system-managed, so they wont generate a desktop.ini file by default. Renaming files or subfolders inside a plain folder like C:\Projects does not trigger the system to create desktop.ini. That file is only generated when a customized folder (icon change, folder template change), the folder is flagged by system as needing a display name overrider or youre working with known/system folders.