Synaptic and Muon look at packages, which is something different than applications. Applications and software with much metadata is in a different file. We generate the data from packages, but it is not the same as a package. In order to get enough metadata out, the packages must match some criteria, and meeting those is the job of the individual package maintainers. So, your bug against gnome-software is actually a bug against Krita, bug #1576827 in particular.
Since samba is a technical thing, it will likely never be shown in a tool like GNOME Software, instead it will be installed in an app actually wants it. 3rd-party repos not being able to display apps is another, different bug, bug#1576780 So, yeah, that's the whole story. Maybe this issue can be closed in GS as invalid. The "nobody cared enough" statement was basically me being frustrated with not enough people caring to fix their metadata, something which will improve in future, fortunately. (We will also have more visible diagnostic messages in Debian soon, which should help fixing this issue. See https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=806740 ) ** Bug watch added: Debian Bug tracker #806740 http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=806740 -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1579415 Title: Ubuntu Software Center does not display third party apps or all installed apps Status in gnome-software package in Ubuntu: Opinion Bug description: Description: Ubuntu 16.04 LTS Release: 16.04 gnome-software: Installed: 3.20.1+git20160426.1.a976144-ubuntu-xenial-0ubuntu1 Candidate: 3.20.1+git20160426.1.a976144-ubuntu-xenial-0ubuntu1 Version table: *** 3.20.1+git20160426.1.a976144-ubuntu-xenial-0ubuntu1 500 500 http://gb.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages 100 /var/lib/dpkg/status 3.20.1+git20160420.1.ca63436.ubuntu-xenial-0ubuntu2 500 500 http://gb.archive.ubuntu.com/ubuntu xenial/main amd64 Packages The new Ubuntu Software Center does not display all software. For example no third party repo applications are displayed. Search for example: Ubuntu-restricted-extras - no results muon - no results krita - no results samba - no results These do not show under installed either, though they are installed. However, all are shown in Synaptic Package Manager and MUON Additional: I have installed the old Ubuntu Software Center and can confirm that ALL applications are correctly listed. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1579415/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp