There is no unequivocally answer in the domain of security, secure refers to a threat model.
When your threat model includes Microsoft or US surveillance then no Microsoft OS can provide you the security you're aiming for.
Then again Desktop Linux is no OpenBSD or GRsecurity[1], A hardened linux experience usually doesn't come out of the box with Desktop Linux, but still there are options to explore[2] if you're so inclined.
When your threat model includes Microsoft or US surveillance then no Microsoft OS can provide you the security you're aiming for.
Then again Desktop Linux is no OpenBSD or GRsecurity[1], A hardened linux experience usually doesn't come out of the box with Desktop Linux, but still there are options to explore[2] if you're so inclined.
[1]: https://grsecurity.net/ [2]: https://wiki.archlinux.org/index.php/Security