Created attachment 7509 Application dnfdragora-updater inactivated. Description of problem: Icons dnfdragora-updater (attachment 7508 ) persist to show themselves in the Notification area while application is inactivated in Notifications. Steps to Reproduce: 1. In item Notifications, inactivate the application dnfdragora-updater (attachment). 2. log out and log in back to the session. Actual results: Icons dnfdragora-updater persist to show in the Notification area while it should not. Expected results: Icons dnfdragora-updater should not show themselves in that case in the Notification area.
Created attachment 7513 dnfdragora-updater unchecked. Even in the case where the application dnfdragora-updater is unchecked in Session and Startup (attachment) in addition to the previous case, one icon is still displayed after logout or reboot. Steps to Reproduce: Uncheck dnfdragora-updater then reboot.
The notification settings you posted are a part of xfce4-notifyd, the notification daemon, which is unrelated to the panel's "notification area" (naming clash :/ ). You can hide items from the system tray (but this does not mean that they are not running/active) by going to your panel preferences -> items -> notification area -> properties and unchecking dnfdragora-updater from the list. I guess you have to somehow otherwise disable its autostart, which would be either using something like "sudo systemctl disable dnfdragora-updater". In any case, your problem is unrelated to the panel and likely Xfce as a whole too (at least if I correctly understand what you are reporting here, which is dnfdragora-updater running and showing up while it shouldnt).
In Fedora, since version-release dnfdragora-1.0.1-8.git20171229.24e4647.fc27.noarch isuue 14123 does not persist, which obviously indicates that current issue, which persists, is tied to component xfce4-notifyd-0.4.0-2.fc27.x86_64. Gael to achieve is to hide those Items from the system tray not to disable them running.