I don't think that's a relevant distinction. The article you linked to references both and uses wording like this ( mine):

In this spirit of enabling developers and their organizations, Google is pleased to be joining the Technical Steering Group of the .NET Foundation. .NET is a key component in the modern enterprise, and the Google Cloud Platform (GCP) team has worked hard to ensure that .NET has first-class support on Google’s infrastructure, including excellent infrastructure for Windows.