the "Blazor Server App" template is retired and only for .net 6. if you want to create .net 8 blazor server app, you use the new template "Blazor Web App" which support both server and client (WASM).
Why can't I create a Blazor Server App with .NET 8?
I'm trying to create a Blazor Server App using .NET 8. I've done this at home, but here at work Visual Studio 2022 only allows me to create a Blazor Server App using .NET 6. I've gotten into Visual Studio Installer, to check to make sure I have .NET 8 as a component, like I do .NET 6. I have both .NET 6 and .NET 8.
I've searched for similar questions here and found Why does Visual Studio create a solution not allow selecting .NET 8? @Anna Xiu-MSFT answer was to use a different Visual Studio template, Blazor Web App. My concern is I need my app to work with Windows Authentication!
I'm using Visual Studio 2022 Enterprise Edition.