SteamOS is a Arch Linux based Linux distribution designed to run Valve's Steam and Steam games. It also provides a desktop mode .



Manjaro Linux is described as 'Manjaro is a user-friendly Linux distribution based on the independently developed Arch operating system. Within the Linux community, Arch itself is renowned for being an exceptionally fast, powerful, and lightweight distribution that provides access to the very latest cutting' and is a very popular Linux Distro in the os & utilities category. There are more than 100 alternatives to Manjaro Linux for a variety of platforms, including Linux, Self-Hosted, Mac, BSD and Windows apps. The best Manjaro Linux alternative is Linux Mint, which is both free and Open Source. Other great apps like Manjaro Linux are Arch Linux, Debian, Ubuntu and Fedora.
SteamOS is a Arch Linux based Linux distribution designed to run Valve's Steam and Steam games. It also provides a desktop mode .



A Unix-based OS for Mac with seamlessly integration with Apple’s ecosystem, offering an intuitive UI, productivity tools like Finder, Spotlight, and Automator, built-in apps like Safari and Photos, Continuity for cross-device functionality, and security features including FileVault and Gatekeeper.




Does not run on anything but Apple PCs. It is illegal to run on anything else (like a "Hackintosh").
macOS is a closed proprietary ecosystem

This alternative is disputed. macOS is a legitimate Manjaro Linux alternative, but it might have issues that some users think are important.
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...


Qubes is an open source operating system designed to provide strong security for desktop computing.




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...


ReactOS™ is a FOSS effort to develop a quality operating system based on the architecture of Microsoft® Windows™ NT family of operating systems, that is compatible with applications and drivers written for it (NT4, 2000, XP, 2003, Vista, 7).






It isn't based on Arch Linux, while Manjaro Linux is.
This alternative is disputed. Xubuntu is a legitimate Manjaro Linux alternative, but it might have issues that some users think are important.
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.




Gentoo Linux is a versatile, fast, highly configurable and completely free Linux and FreeBSD distribution geared towards developers and network professionals.



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.

The Nobara Project, to put it simply, is a modified version of Fedora Linux with user-friendly fixes added to it. Fedora is a very good workstation OS, however, anything involving any kind of 3rd party or proprietary packages is usually...



CentOS is a community-supported, free and open source operating system based on Red Hat Enterprise Linux. It exists to provide a free enterprise class computing platform and strives to maintain 100% binary compatibility with its upstream distribution.




If you want to replace Manjaro, macOS is unlikely to be the answer. macOS works best on Apple's hardware - Linux can be a challenge to run on that. MacOS is also proprietary, closed source and far less customizable. Good Manjaro alternatives might be Antergos (Arch-based), Fedora, OpenSuse, ElementaryOS or even Qubes, depending on your needs.