Ubuntu has several (many) desktop choices.
Is Gary using Ubuntu with GNOME 3 ? There are also exists Kubuntu with KDE Plasma or Ubuntu-MATE with MATE. MATE (pronounced with emphasis on the 'e', like in Yerba Mate) is a project that originated on Linux arch and parabola. https://en.wikipedia.org/wiki/MATE_(software) "An Argentine user of Arch Linux started the MATE project to fork and continue GNOME 2 in response to the negative reception of GNOME 3" So in order to make the Ubuntu distribution more like the arch/parabola, it is a possibility to install the Ubuntu-MATE flavour of Ubuntu ... You then run a Ubuntu with GNOME 2 ("MATE") and it would be interesting to hear whether gst-browser works on Ubuntu-MATE. David Stes