Bring back Custom Notification settings!!!!
I recommend Skype to restore the feature for notification that is DO NOT show a preview banner at the right corner and keep the sound when having a notification or separate those options. Currently, when I turn off "Chat Notification", I can't hear the sound when having a notification, but if I turn on "Chat Notification", a banner shows at the right corner with chat content. It's really inconvenient function.
I have the same problem with chat notification pop-up, it prevents me interacting with my working windows / applications as well as leaks my information. Hope Skype team can help to improve this feature.