I use several apps where the notifications pop-out window interferes. How can I disable it?
Because, when I’m using FotoMagico, for example, the Notification Window continually pops out and interferes with my keyboard and mouse actions for FotoMagico.
You can use Focus modes to do exactly this.
Go to System Settings, Focus. Create a new focus mode named anything you want.
In the settings for that Focus mode, set the notifications as you like. Leave them all off, or turn on specific "Allowed Apps" or "Allowed People" if you like.
Then set a schedule. Click the Add Schedule button. Then choose App, and add the apps you are concerned about. This will make the focus mode switch on automatically when you are using those apps.