I've seen a lot of people who quite dislike Manjaro, and I'm not really sure why. I'm myself am not a Manjaro user, but I did use it for quite a while and enjoyed my experienced, as it felt almost ready out of the box. I'm not here to judge, just wanted to hear the opinion of the community on the matter. Thanks!
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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
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Manjaro had a rough history of not taking security seriously. I hope they have improved, but the impression stuck.
They have done a few things right by making Arch more approachable when Arch was more of a RTFM type distribution. Now Arch is easier and even ships with an installer, but Manjaro's installer is easy.
The end result is still that the user still needs to manage an Arch distro. I would recommend learning the Arch way from Arch instead of taking the easy road.
If you want an easy distro, rolling releases, and up-to-date packages, I would recommend Debian Did over Manjaro. If you want Arch, use Arch.