When comparing Parabola GNU/Linux-libre vs Zorin OS, the Slant community recommends Parabola GNU/Linux-libre for most people. In the question“What are the best Linux distributions for desktops?” Parabola GNU/Linux-libre is ranked 15th while Zorin OS is ranked 34th.
Specs
Ranked in these QuestionsQuestion Ranking
Pros
Pro Protects your freedom, certified free by the FSF
Pro Option to use OpenRC or Systemd
Parabola has an OpenRC edition and a Systemd edition, so users can choose which init system they want.
Pro All the benefits of Arch Linux, only 100% certified free software
Pro Very Secure
Pro Has its own repos
Parabola has its own repos (which are almost as large as Arch Linux) and the IceCat browser is included.
Pro Can be migrated from Arch Linux without a CD/USB
Pro Based on Arch Linux
Pro Stable
Pro Good Selection of pre-installed software
New users may be unaware of what software is available for Linux, but Zorin includes a good selection for everyday tasks out of the box.
Pro Windows desktop style
The desktop UI was made to resemble Windows 7, but alternative settings are available.
Pro Ubuntu-based
Zorin is compatible with Ubuntu's sizable repositories of Free Software.
Pro Bundles tools for changing the look and feel of the distribution
Zorin includes look changer and theme changer.
Pro Partial Windows compatibility
Zorin includes WINE and PlayOnLinux to run many Windows applications and games.
Pro Installer can set up dual boot
Pro Ubuntu got too big
Ubuntu uses too much resources, Zorin uses less.
Pro Accessibility features
Pro Zorin Connect
Allows syncing notifications with your phone.
Pro Low resources consumption
Cons
Con Won't work out-of-the-box on the most PC's
Almost all PCs need non-free drivers but Parabola has none to offer.
Con Same cons that apply to Arch Linux
Con Not compatible with AUR
Unlike other Arch-based distros, this free distro doesn't support AUR.
Con Small repositories
Since Parabola is a completely free distro, there is no non-free software available and the community repositories are small compared to the AUR.
Con Incompetent developers
They only care about removing "non-free" software, rather than making a properly working OS.
Con Serves no purpose
It's just Arch without non-free software and is basically a niche OS with few users.
Con Not really free
People have to pay hundreds to maintain this distro.
Con Limited desktop styles in Free Version
All free editions only offer Windows XP, 2000, and 7 and Gnome 2. You have to pay $9-10 in order to get Unity (Ubuntu) and Mac OS X themes.
Con Even with v16 Pro, zero tech support replies
Do not pay for Pro. You’re supposed to get tech support with your $39 purchase. After contacting them a few months ago about the inability to install build tools due to their wonky custom versions, to date there has been no answer. You could find a friend and get them to send you the theme and look packages. The rest is all available easily in the Ubuntu catalog.