Thank you for your open and valuable feedback!
I have good news that we are currently rewriting and improving the Getting Started section of the Telerik UI for ASP.NET Core documentation!
The Including Client-Side Resources in ASP.NET Core Projects article
will be updated accordingly with the latest information for the suite.
For your convenience I have attached the First Steps article (FirstSteps.zip) so that you can examine it, follow the Getting Started steps and share your feedback.
If you need to obtain the client resources for the Telerik ASP.NET Core components, you can download them from https://www.telerik.com/account/product-download?product=UIASPCORE
(login is required) -> telerik.ui.for.aspnet.core.2019.2.619.commercial.7z and find it inside the js and styles folders of the archive.
Get quickly onboarded and successful
with your Telerik and/or Kendo UI products with the Virtual Classroom free technical training, available to all active customers. Learn More.