There is a lot of window managers available. Below are some of them, and how to install them.
Gnome
KDE
Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the commands below.
sudo apt-get install kubuntu-desktop
XFCE
Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the commands below.
sudo apt-get install xubuntu-desktop
LXDE
or
Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the commands below.
sudo apt-get install lxde
As far as turning Compiz off. The easiest way is to use a session that does exactly what you want.
- Log out.
- At the login screen choose the Ubuntu Classic (No effects)session
- Log in.
You will be in a classic GNOME session without Compiz. Subsequent logins will use this session as default.
Another way to turn off compiz with just one click you need to install an application called compiz-switch. Download compiz-switch
With compiz-switch you can turn off and turn on the compiz easily with just one click.
For a detailed list of windows managers that explains everyone, give technical detail, and then a comparisson between all of them, then Check this site out!
On a personal note, I have tried most of these managers, and I'm very happy with LXDE. I have been using it since I made the switch to Ubuntu.
Source: https://apps.ubuntu.com/cat/
Best Answer
The problem is your Desktop Environment i.e. Unity, is a plugin of the Window Manager Compiz. Similarly GNOME 3 is a plugin of Mutter.
So thing is that, the menus of your Window Manager are tightly coupled to the Dash of the Desktop Environment, which can be only done via a plugin.
If there were a Unity plugin for Mutter or Kwin or other Window managers, then they could be used too instead of Compiz