This demo shows how Blazor (using only official .NET 6 APIs) running in both the web browser and WinForms wrapper. This uses the default Blazor Server template from .NET 6 as an example.
All code shared between Blazor Desktop and Blazor Server apps is in the BlazorClassLibrary Razor class library. To switch between projects assign a necessary project as the main one (starting).
Because you have now achieved the power of Chromium you can launch high-performance interactive 2D/3D WebGL graphics even directly inside your desktop apps such as Windows Forms.
To run it open /BlazorCrossPlatform.sln in Visual Studio 2022 Preview 4 with the .NET 6 RC1 SDK installed and "Enable Preview .NET SDKs" turned on.
Special thanks to Ed Andersen for Blazor kungfu techniques and Evan Wallace for incredible WebGL water demo.