Qubes OS is described as 'Qubes is an open source operating system designed to provide strong security for desktop computing' and is a very popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Qubes OS for a variety of platforms, including Linux, Self-Hosted, Mac, Windows and BSD apps. The best Qubes OS alternative is Linux Mint, which is both free and Open Source. Other great apps like Qubes OS are Ubuntu, Debian, Fedora and Arch Linux.
FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of...
EndeavourOS is an Arch-based distro that provides an Arch experience without the hassle of installing it manually for both x86_64 and ARM systems. After installation, you’re provided with a lightweight and almost barebones environment ready to be explored with your terminal...
Pop!_OS is an operating system for STEM and creative professionals who use their computer as a tool to discover and create. Unleash your potential on secure, reliable open source software. Based on your exceptional curiosity, we sense you have a lot of it.
NixOS is a GNU/Linux distribution that aims to improve the state of the art in system configuration management. In existing distributions, actions such as upgrades are dangerous: upgrading a package can cause other packages to break, upgrading an entire system is much less...
Versatile OS with universal app architecture, free first-year offer for Windows 7 and 8.1 users, redesigned mouse-touch UI, virtual desktop, Microsoft Edge, upgraded security, and enhanced graphics for gaming, supporting fingerprint and face recognition login.
After October 14, 2025, Windows 10 will no longer receive free software updates, technical support, or security fixes. Microsoft suggests to upgrade to 
Windows 11 : https://blogs.windows.com/windowsexperience/2024/10/31/how-to-prepare-for-windows-10-end-of-support-by-moving-to-windows-11-today/
Qubes OS was designed to be absolute opposite to Windows 10
It's not open source neither focused on privacy and security
Gentoo Linux is a versatile, fast, highly configurable and completely free Linux and FreeBSD distribution geared towards developers and network professionals.
Whonix is a desktop operating system designed for advanced security and privacy. Whonix mitigates the threat of common attack vectors while maintaining usability. Online anonymity is realized via fail-safe, automatic, and desktop-wide use of the Tor network.
Lubuntu is a fast and lightweight operating system with a clean and easy-to-use user interface. It is a Linux system, that uses the minimal desktop LXDE/LXQT.
Aurora is a delightful KDE desktop experience for end-users that are looking for reliability and developers for the most-hassle free setup. Zero maintenance included.
This is a project to port Android open source project to x86 platform, formerly known as "patch hosting for Android x86 support". The original plan is to host different patches for Android x86 support from open source community.
Experience the latest Windows OS with a new Start menu, integrated Teams, and gaming technologies like Auto HDR. Improved security with stricter requirements enhances protection, and seamless Microsoft Account integration makes it ideal for modern devices.
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Windows is not similar in any way.