I agree with everything but the "controlling open source" bit. I think what they are actually doing is trying to create new platforms they can control, because

I agree with everything but the "controlling open source" bit. I think what they are actually doing is trying to create new platforms they can control, because that's a great business model. Open source, via Github is just a small piece of the pie they want. Think MS teams/Office365, Linkedin, Gaming, Github, etc. These are platforms they are interested in controlling and deriving revenue from.