Ubuntu – How to install Deepin Desktop Environment in Ubuntu 16.04 LTS

You can also use

sudo apt-get install --no-install-recommends lubuntu-desktop 

Which will install the Lubuntu desktop without all the recommended applications, though things that rely on these applications will not work.

I think a better way to do it would be to install all of lubuntu-desktop with:

sudo apt-get install lubuntu-desktop  

and then use the Lubuntu Software Center to remove applications you aren't going to use. You can then remove lubuntu-software-center with:

sudo apt-get remove lubuntu-software-center

The only difference between this approach and Ringtail's is installing lxde will give you the generic LXDE desktop, while installing lubuntu-desktop will give you more of an Ubuntu specific LXDE, with custom wallpapers for example.

This article on Web upd8 says that Deepin is using a patched version of Compiz. So most likely it's not compatible with Unity (which also depends on Compiz).

You can still make a dual-boot if you like to use both DE's.