Discover in Arch Linux hangs at 0% of the application installation. Apparently, it is flatpak that does not load, because applications are installed normally through “From Arch Linux”.
Hi! Just as a general note, the Arch Linux maintainers strongly recommend not using Discover for installation and updating of packages from the Arch repositories: Allow more error page parameters to be customized to suit the error, and use that to show a custom, Arch-specific error message when no app backends are installed (!307) · Merge requests · Plasma / Discover · GitLab
If you’ve been using Discover to update or install Arch repository packages on an Arch-based system, there might have been some issues introduced as a result.
If you run Discover from a terminal, do you get any messages printed to that terminal when you try to install a Flatpak?
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Better avoid Discover - not a good idea on any Arch or Arch-based system.
To update Arch (System-Aur-Flatpak):
sudo pacman -Syu && yay -Syu && flatpak update
You can also look at a utility called ‘Topgrade’ which has a nice config file too and can do a dry run to let you see what’s going to occur: