In my case (Ubuntu 20.04.1), update-notifier was being spawned every time I log in (regardless of my software update settings) due to this file:
/etc/xdg/autostart/update-notifier.desktop This file has a "X-GNOME-Autostart-Delay=60", causing a 60-second delay, so from a user's perspective it might seem like it appears randomly, rather than being triggered due to logging in. In case it helps someone else, you can disable this behavior by renaming the file: sudo mv /etc/xdg/autostart/update-notifier.desktop /etc/xdg/autostart/update-notifier.desktop.disabled -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1834226 Title: update-notifier doesn't respect "automatically check for updates: Never" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1834226/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs