While attempting to follow the instructions on Microsoft's Learn Page linked here:
https://learn.microsoft.com/en-us/visualstudio/get-started/csharp/tutorial-uwp?view=vs-2022
I'm unable to get the XAML Desiger to open, either when opening the .xaml files, or force opening it through Shift + F7/the button in the view menu.
I'm using the Blank UWP App from Create Project, with default target settings
Things I've tried based on reasearch from SO and Visual Studio Forums:
Most of my searching so far has found mostly responses referencing WinUI3 not having a designer, but my understanding is that this does not apply to UWP
According to the Dev Blogs Modernize your UWP app with preview UWP support for .NET 9 and Native AOT
UWP support for .NET 9 is available in preview, and as such you should expect to potentially find issues, as well as missing functionality (such as no XAML Designer at the moment). You should also expect some binary size regressions compared to .NET Native (more on this below).
If you want to use XAML designer in UWP, it is recommended to select UWP Blank App(.NET Native) as project template.