Forget Windows 11 -- ReactOS, the Microsoft-free Windows operating system, just got a massive update! Download it now
Just as you can get versions of Android that are free from Google, including LineageOS and /e/OS, so there are also alternative Windows operating systems not developed by Microsoft.
One of the most best examples of this is ReactOS, an open-source project that aims to provide a free and compatible replacement for Windows, removing all the things you don’t want in Microsoft’s OS, such as spying/telemetry, adverts, and so on.