I have Kubuntu 24.04.4 with Plasma KDE 5.27.12.
Discovery informed me that I should install Gnome Application Platform as well as org.gnome.Platform.Locale in their latest update. Why would I want to do that if I’m running Plasma? Also when running:
sudo apt upgrade
neither of those 2 packages show up.
what does apt list --installed *gnome* say?
mine says
gnome-disk-utility/noble,now 46.0-1ubuntu3 amd64 [installed]
gnome-keyring-pkcs11/noble-updates,now 46.1-2ubuntu0.2 amd64 [installed,automatic]
gnome-keyring/noble-updates,now 46.1-2ubuntu0.2 amd64 [installed,automatic]
language-pack-gnome-en-base/noble-updates,noble-updates,now 1:24.04+20260127 all [installed,automatic]
language-pack-gnome-en/noble-updates,noble-updates,now 1:24.04+20260127 all [installed]
libgnomekbd-common/noble,noble,now 3.28.1-1build3 all [installed,automatic]
libgnomekbd8/noble,now 3.28.1-1build3 amd64 [installed,automatic]
libpam-gnome-keyring/noble-updates,now 46.1-2ubuntu0.2 amd64 [installed,automatic]
network-manager-openvpn-gnome/noble-updates,now 1.10.2-4ubuntu0.2 amd64 [installed,automatic]
pinentry-gnome3/noble,now 1.2.1-3ubuntu5 amd64 [installed,automatic]
proton-vpn-gnome-desktop/unknown,now 0.10.1 all [installed]
Maybe you’re talking about Flatpak runtime? Some applications require it to work
These are either from snap of flatpak based applications. These are the library sets some of your installed software needs to be able to run. These are separate from your system’s files (managed with apt) so that they do not interfere with or conflict with things.
You have installed applications from Discover that use Gnome libraries, is all.
If you installed a Gnome-based app using apt packages, you would see similar things happeneing when you update.
what does apt list --installed *gnome* say?
Just gnome-disk-utility which I personally installed, as I wanted to use ‘Disks’ package.
I did a flatpak list, and sure enough GNOME Application Platform version 49 is on it. But I did not install that myself. So it seems to have come with flatpak and explains why it did not show under an apt update. However I’ve removed this from flatpak, and Discovery still works fine so it seems surplus to my requirements.
flatpak usually cleans up after itself well enough, but sometimes it can leave stray things behind that are not needed by any of your current flatpak apps any longer.
You can try this to clean up:
flatpak uninstall --unused
It is like apt’s autoremove option.