[Kwpolska]

You may be able to get away with writing some of your business logic in VB.NET, but the actual endpoints, and likely many things around it, must be C#.

F# at least is officially supported for ASP.NET Core, and has official ASP.NET Core templates in Visual Studio.

[pjmlp]

Try to use the Blazor ones without community helper libraries, both languages aren't without issues.

That is why I point that the change of meaning in C from CLR.