Created attachment 142219 [details]
LibreOffice after fresh installation in KDE Neon User Edition
KDE Neon User edition use Ubuntu 16.04 as base. When I'd like to install LibreOffice via discover the GUI app installer the different LibreOffice app's didn't install libreoffice-kde or libreoffice-gnome so after the installation you see the fallback vcl module.
Please make add libreoffice-kde or libreoffice-gnome as dependency of LibreOffice installation. I don't know if it's the same in Ubuntu 18.04 when use the gnome / ubuntu software center as all software centers use the same base it should be the same.
If that is a bug, the bug is on the Ubuntu side. Please file a bug report on Ubuntu bugtracker: https://bugs.launchpad.net
Closing as NotOurBug.
Best regards. JBF