https://forum.snapcraft.io/t/how-are-snaps-claiming-to-have-no-internet-plug-regulated/18755/29
How Are SNAPS claiming to have no internet plug regulated? - #29 by jdstrand - snapcraft -...
Jul 15, 2020 - WPS-2019 for example, when opening is now showing an update is available, therefore it must connect to the internet.
https://snapcraft.io/install/chocolate-doom-jdstrand/kubuntu
Install chocolate-doom-jdstrand on Kubuntu using the Snap Store | Snapcraft
Get the latest version of chocolate-doom-jdstrand for on Kubuntu - Chocolate Doom engine
chocolate doomthe snapinstall