This version is useful if you are interested in receiving
error information in the case where the application is
sandboxed and the portal may present an application chooser
dialog to the user.
This is also useful if you want to be sure that the D-Bus–activated
applications are really started before termination and if you are interested
in receiving error information from their activation.
Async version of gio.app_info.AppInfo.launchDefaultForUri.
This version is useful if you are interested in receiving error information in the case where the application is sandboxed and the portal may present an application chooser dialog to the user.
This is also useful if you want to be sure that the D-Bus–activated applications are really started before termination and if you are interested in receiving error information from their activation.