Centrally Managed WSUS, but Updates come from Internet

When looking at the common WSUS deployment options, I don't see an option where the updates are centrally managed for multiple WSUS servers, but both servers download the updates from Microsoft.

Is this a deployment option?

You can in WSUS 3, your replica server needs to be configured to store updates locally.

An option will be available to store updates locally, download files from Microsoft Update, but do not download from the upstream server. Mentioned here screenshot below:

I know that there are 3rd party tools that will do this type of thing for you. We use N-Able's N-Central to do it, but it'd probably be a bit pricey for what you desire and is really specific to our industry.