sudo featherpad will write the config to users home - as you experienced. It's not a bug - thats exactly the reason why using graphical applications with sudo is discouraged. To fix:
chown $user:$user -R ~/.config/featherpad should be sufficent ** Changed in: featherpad (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1802799 Title: Featherpad preference settings ignored when reopening (Lubuntu 18.10) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/featherpad/+bug/1802799/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs