VLC for openSUSE

VLC VideoLan client
VLC Repositories for openSUSE contains all the required libraries that are not shipped with original openSUSE. (VLC is also provided by Packman, do not add both repositories.)
Version: Tumbleweed http://download.videolan.org/pub/vlc/SuSE/Tumbleweed/
Version: Leap 15.0 http://download.videolan.org/pub/vlc/SuSE/Leap_15.0/
zypper dup:
After adding VLC repository be sure to switch system package to those in VLC as a mix of both can cause a variety of issues.
Version: both zypper dup –from SuSE –allow-vendor-change


Credits: https://en.opensuse.org/Additional_package_repositories#VLC_VideoLan_client

Trisquel Desktop Environment

You are right. However, for a full desktop, one wants to install as well the "recommended" packages:

$ sudo apt-get install trisquel trisquel-recommended
$ sudo apt-get install trisquel-mini trisquel-mini-recommended
$ sudo apt-get install triskel triskel-recommended

$ sudo tasksel