UB inherits desktop-file-utils I'm guessing here - the debian/defaults.list points to the snap-store ubuntu-software.
But for people who dont have the snap store version (i.e. installed gnome-software manually and/or removed the snap) there is no corresponding entry for gnome-software-local -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to file-roller in Ubuntu. https://bugs.launchpad.net/bugs/1889317 Title: When clicking a .deb, file-roller gets launched ( instead of an installer for .deb ) Status in file-roller package in Ubuntu: Confirmed Bug description: Hi, On Ubuntu 20.04 ( default flavor, and Budgie, maybe other else ) when clicking on a .deb it's file-roller that gets launched by default, instead of an expected .deb installer ( be it through gnome- software-local-file.desktop or any package-manager ). Some references : ⋅ https://discourse.ubuntubudgie.org/t/deb-packages-open-via-zip-file-manager-by-default/3963 ⋅ https://itsfoss.com/cant-install-deb-file-ubuntu/ So this bug already affects many users. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/file-roller/+bug/1889317/+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