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Ubuntu GNOME is an official Ubuntu flavor featuring the GNOME desktop. We aim to provide a relatively pure GNOME desktop on top of the popular Ubuntu foundation. We believe the combination of Ubuntu and GNOME is the best choice for those looking for a beautiful, simple, and usable operating system.
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Pros
Pro Combines the most popular desktop environment and the most popular Linux distribution
Ubuntu Gnome is an officially recognized Ubuntu derivative. Ubuntu is the most popular Linux Distribution for Desktop and Laptop Personal Computers and is also widely used on Servers. Gnome is the most popular Desktop Environment for Linux Operating Systems.
Gnome's Desktop environment is modern, sleek and designed to get out of your way, so you can just work. It is customizable and once you click around, and see some of the features you can add and change, you will find Ubuntu Gnome provides for a very fast and comfortable work or play environment.
Pro Offers a pure Gnome desktop experience
The Gnome desktop environment included in this distribution is untouched, offering a pure Gnome desktop experience. In addition, all the important Gnome apps are already installed, such as Nautilus file manager, Evince document viewer, Evolution personal information management application, Gedit text editor, Cheese webcam software, Empathy multi-protocol instant messenger, and many others.
Pro Hot corner brings up favorite list bar, previews of all windows AND extra desktops
Hot corner brings up favorite list bar, previews of all windows AND extra desktops. Or just hit "windows" key and anything you want is there. Much faster than shortcuts. Gnome 3 speed, with Ubuntu software and support. Bang!
Cons
Con Relatively high system requirements
The Gnome desktop environment is a resource hog which requires hardware accelerated graphics rendering in order to run smoothly, making out of the box Ubuntu Gnome unsuitable for low end systems and older hardware. Even mildly aged hardware, you'll get far better performance out of a lighter desktop environment like LXDE or XFCE.
Con Redundant
There is absolutely no reason to install it, since it uses the same package repositories as Ubuntu and you can transform any Ubuntu install into a Ubuntu GNOME install.
Con Some areas of Gnome are unpolished and lack features
Some aspects are still unpolished and lack features - the Gnome design team works well, but seems to not be taking input from the outside world.
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Flagged Pros + Cons
Pro Developed by the community for the community
All the members of this project are working on voluntary basis. We do what we do because we simply love it.