Why doesn't Microsoft support this project?

[catmanjan]

I noticed https://fluent2.microsoft.design/get-started/develop doesn't mention blazor at all, so it seems the officially supported way to use fluent is to use react or winui3

[vnbaaij]

Microsoft as an organization is just too big to communicate one overarching approach.
Also, the Fluent UI Blazor library has never had a real home with a product team. It has always been an employee and community driven project.