It's called UpDownTool and it lets you downgrade from Windows 11 to a version of Windows 10 with continued support until 2032 ...

Effortlessly return to Windows 10 and keep your data safe, even if Microsoft’s rollback window has already closed.

Windows Downdate comes to life The tool, which is written in Python, is named “Windows Downdate” and can be downloaded via this GitHub page. It currently works with Windows 10, Windows 11, and ...