SwiftUI WindowGroup

What is WindowGroup?

WindowGroup is one of six default scene type available to you in 2023. The scene types include, WindowGroup, DocumentGroup, Settings, Window, MenuBarExtra, Immersive Space. Speaking of Scene, Scene acts as a container for a view heirarchy that you want to display to users.

For example

MenuBarExtra, places items in your Mac tool bar.

Settings, provides a settings view heirarchy.

Window Provides a single screen.

WindowGroup in particular allows you to present a group of identical structured windows, meaning every window in the group maintain independent state.

For more

WindowGroup, see tutorial Create multiple windows in VisionOS

Scene, see Apple tutorial Specifying the view hierarchy of an app using a scene