just stumbled across this link, its eye opening that a windows or macOS is more secure than linux?
The hardening required for a reasonably secure Linux distribution is far greater than people assume. You would need to completely redesign how the operating system functions and implement full system MAC policies, full verified boot (not just for the kernel but the entire base system), a strong sandboxing architecture, a hardened kernel, widespread use of modern exploit mitigations and plenty more. Even then, your efforts will still be limited by the incompatibility with the rest of the desktop Linux ecosystem and the general disregard that most have for security.
moderators: can we have another thread from this post?