Fedora and Red Hat have offered .NET packages for years. We've worked very closely with those folks and they've taught us a lot about how to work collaboratively with distro maintainers. We meet with them weekly. Notice that Fedora is mentioned in the blog post and here: https://docs.microsoft.com/dotnet/core/install/linux#officia....
This just puts Ubuntu at the same level as Fedora/RH/Arch were before, am I right? In the sense that this just means .Net is in the official repos (as was the case for Fedora/Arch before)