GridSplitter support in WinUI 3 Desktop - Windows App SDK 1.0.0

[JosHuybrighs]

I need GridSplitter for an app that I am porting from UWP/DesktopBridge to WinUI-Desktop (MSIX packaged).
I started with getting the Microsoft.Toolkit.Uwp.UI.Control nuget package, but there doesn't seem to be any GridSplitter in there.
The package mentions UWP in its name what could suggest that it doesn't work with a WinUI-Desktop app.

So the question: does WinUI-Desktop require its own GridSplitter and if so is it already available?
I am targetting .NET 6 and use C#.

[kmgallahan]

https://portal.productboard.com/winappsdk/1-windows-app-sdk/c/39-splitter-control

https://docs.microsoft.com/en-us/dotnet/api/communitytoolkit.winui.ui.controls.gridsplitter?view=win-comm-toolkit-dotnet-7.0