SUMMARY *** Some applications send a lot of different notifications and provide no way to filter out unneeded ones. But currently, KDE Plasma Notifications settings provide the ability to only disable all notifications from an app. And provide the limited (hardcoded?) list of apps that we can configure. So I don't see in the list many apps that I use and want to configure notification rules for. And even for the apps presented in the list, sometimes configuration doesn't work. For example, if I remove the "Show popups" for the Spotify application, it notification still continues to pop up, ignoring this setting. To workaround this problem will be good to implement custom filtering rules for incoming notifications, in addition to the current per-app settings. Something easy like the notification source filter (by substring or regexp) and the notification body filter (the same - substring or regexp). And the debug mode, where we can track the notification properties for incoming notifications, to understand how to filter the specific ones. What do you think about this idea? *** SOFTWARE/OS VERSIONS Operating System: Kubuntu 23.10 KDE Plasma Version: 5.27.8 KDE Frameworks Version: 5.110.0 Qt Version: 5.15.10 Kernel Version: 6.5.0-17-generic (64-bit) Graphics Platform: X11