Flatpak – a security nightmare

https://www.linux.fi/wiki/Flatpak

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Some distros like Linux Mint 22 has Flatpak in use, which can be a big security problem, because these packages does not show in package management like Synaptic, and no one knows if they are up in time, etc.

Obviously there has no way to remove Flatpak´s via GUI, so it need to do via Terminal. The funny thing is that for removing installed Flatpak programs, you need to be installed Flatpak, so that you can remove ”leftovers”.

To check if Flatpak is installed

apt-cache policy flatpak

If you have some launchers (desktop-files) which has flatpak in run file, you need to install and remove Flatpak and its leftovers via Terminal.

sudo apt install flatpak
flatpak list
flatpak uninstall --all
flatpak uninstall --unused --delete-data
flatpak uninstall --all
sudo apt purge --autoremove flatpak