Well, for Windows there is https://www.oo-software.com/en/shutup10 to help manage telemetry and other settings, though the OS resets certain user choices after updates.
Though, if possible, consider using GNU/Linux whenever possible - distros like Debian have historically had little controversies around them, even package popularity metrics are presented as a choice to you during install time: https://popcon.debian.org/
Certain other distros like Ubuntu have a bit more controversy surrounding them, for example, the snaps package mechanism which takes away the user's control over updates by default, though that's more of a security hole and a stability risk, rather than aggressive telemetry related (unless it's introduced by the package creators, a la Audacity's plans that were later rolled back https://github.com/audacity/audacity/pull/835).
Of course, if you truly care about your privacy and open software, you might as well use a fully GNU distribution, such as Trisquel, though there are factors like hardware compatibility and software availability which could pose challenges in such cases: https://trisquel.info/
Though, if possible, consider using GNU/Linux whenever possible - distros like Debian have historically had little controversies around them, even package popularity metrics are presented as a choice to you during install time: https://popcon.debian.org/
Certain other distros like Ubuntu have a bit more controversy surrounding them, for example, the snaps package mechanism which takes away the user's control over updates by default, though that's more of a security hole and a stability risk, rather than aggressive telemetry related (unless it's introduced by the package creators, a la Audacity's plans that were later rolled back https://github.com/audacity/audacity/pull/835).
Of course, if you truly care about your privacy and open software, you might as well use a fully GNU distribution, such as Trisquel, though there are factors like hardware compatibility and software availability which could pose challenges in such cases: https://trisquel.info/