Kumander Linux

snap : not working for me

how about flatpak ?

Snap isn't working because it was never included in the distro.
and since snapd is nonfree software I don't think it should ever be add to this distro.
if you want to use Flatpak you can do that by installing it the Debian way. https://flatpak.org/setup/Debian
hope this was of some help to you.

Okay
i am using flatpak

Flatpak is installed by default and can be accessed via the Software Center and the command line interface.