I'm not a flatpaker but maybe it was updating the runtimes? http://docs.flatpak.org/en/latest/available-runtimes.html http://docs.flatpak.org/en/latest/availabl

I'm not a flatpaker but maybe it was updating the runtimes? http://docs.flatpak.org/en/latest/available-runtimes.html http://docs.flatpak.org/en/latest/available-runtimes.html Honestly I would be more worried about running mint (a topic not suited for this thread, a quick search would probably show you what I've read about it in the past).