There are 1 repository under blazor-desktop topic.
Example of an actual cross platform web and desktop hybrid Blazor app using the .NET 6 Blazor Desktop implementation
WPF shell with new .NET 6 BlazorWebView control, using native-looking custom HTML titlebar.
Simple demo showing Blazor components being used in a native desktop app.
Domain Model Designer
Using Blazor Desktop with Avalonia (TL;DR: Doesn't work)