ASP.NET Core is not a web framework for .NET; it's at least four different web frameworks you can choose between. It's more like the overarching branding for anything web-related in the dotnet ecosystem.
All these, effectively, plug into ASP.NET Core, on top of WebApplicationBuilder and WebApplication. They are then, usually, hosted with Kestrel (web server) and operate with the same set of abstractions. Razor Pages and Blazor are distinct names and I have never seen anyone confuse them with the ASP.NET Core itself.
ASP.NET Core is not a web framework for .NET; it's at least four different web frameworks you can choose between. It's more like the overarching branding for anything web-related in the dotnet ecosystem.
https://learn.microsoft.com/en-us/aspnet/core/tutorials/choo...