Your first step to creating a PWA in Visual Studio 2019 (I used the Community Edition Preview) is to select the Blazor App template in the File | New Project dialog. After starting the Blazor App ...

The next version of Visual Studio 2019 for Mac 8.5 is in preview and it brings new enhancements in Xamarin, new templates for ASP.NET Core projects and refinements to support accessibility.

Eric Vogel provides step-by-step instructions to create an ASP.NET 5 Core web app in Visual Studio 2019 and embed a Power BI report in it.

Microsoft has released .NET Core 3.0 for Windows, macOS, and Linux with a host of improvements, as well as Visual Studio 2019 16.3 and Visual Studio for Mac 8.3.