I am running a WinUI3 unpackaged desktop application so I am using the ToastNotificationManagerCompat
class. I am wondering how to remove a Toast Notification by Tag. Per the documentation at https://docs.microsoft.com/windows/apps/design/shell/tiles-and-notifications/send-local-toast#step-7-remove-and-manage-notifications I should be able to call

DesktopNotificationManagerCompat.History.Remove("Message2");

However, when I do this I am getting this exception

System.Exception
HResult=0x80131500
Message=You must call RegisterAumidAndComServer first.
Source=Microsoft.Toolkit.Uwp.Notifications
StackTrace:
at Microsoft.Toolkit.Uwp.Notifications.DesktopNotificationManagerCompat.EnsureRegistered()
at Microsoft.Toolkit.Uwp.Notifications.DesktopNotificationManagerCompat.get_History()
at DCF.Forms.Core.UWPNotificationsWrapper.RemoveToastNotificationByTag(String tag) in D:\Workspace\Stash\dcf_forms2\src\DCF.Forms.Core\UWPNotificationsWrapper.cs:line 62
at DCF.Forms.Core.UXFormToasterNotificationWindows.RemoveToastNotificationToastGuid(Guid toastGuid) in D:\Workspace\Stash\dcf_forms2\src\DCF.Forms.Core\UXFormToasterNotificationWindows.cs:line 252
at DCF.UX.FormsSandboxApp.NotificationTester.Plugin.NotificationTesterPlugin.b__8_9() in D:\Workspace\Stash\dcf_forms2\samples\FormsSandboxApp\src\DCF.UX.FormsSandboxApp.NotificationTester.Plugin\NotificationTesterPlugin.cs:line 140
at Microsoft.Toolkit.Mvvm.Input.RelayCommand.Execute(Object parameter)
at ABI.System.Windows.Input.ICommand.Vftbl.Do_Abi_Execute_3(IntPtr thisPtr, IntPtr parameter)

I also see that the DesktopNotificationManagerCompat is marked obsolete. Should I be doing this a different way?