I have some AppStream links (for ex.: appstream://org.kde.k3b.desktop) that I want to open, I tried to find an app to open them but couldn't find any, so any ideas on how to do this ?
Not sure if this is still relevant to your situation, but for the sake of posterity:
At least for Ubuntu, download "Discover" [software center] from the "Ubuntu Software" app. From there, AppStream links should work fine.
Not sure if this is still relevant to your situation, but for the sake of posterity: At least for Ubuntu, download "Discover" [software center] from the "Ubuntu Software" app. From there, AppStream links should work fine.