The valve may be working on a new cloud game service for Steam and may have uncovered it via code located deep inside the company's website.
The Steam database that tracks changes to Steam and Valve games has noticed a new code on the Valve website for partners, asking them to approve adding the Steam cloud service. If you want to see this yourself, you can see the code on the Steam Database's GitHub website or Valve, where you have to search for Steam Cloud Gaming Addendum.
Valve is working on "Steam Cloud Gaming" according to partner site code update. Partners will need to sign an addendum to their terms.— Steam Database (@SteamDB) November 6, 2019
Could this be a competitor to @GoogleStadia?https://t.co/7AQ9YxCol8
So it seems very likely that Valve is trying to offer a game service similar to Google Stadia or Microsoft xCloud, which is something that Valve may need to sign some new distribution agreements with game developers.
The idea of a new cloud gaming service by Steam should be very logical. It can contain all of Steam's current gaming services such as Steam Remote Play, Steam Link, and Steam Link Anywhere, but all of these services require your PC to be gaming. It performs the task of the server, in addition to a very strong Internet connection if you want to play outside your home, so the new service may allow you to stream your games from anywhere you want without the need for this active PC connection.
Valve has been asking questions for comment but has not provided any information yet.
In your opinion, will there be a cloud game service provided by Steam, to compete with Microsoft and Google?
