[rsynnott]

> They need to keep the value of Windows tied to the value of Steam.

The same Steam who has done more than anyone else to make MacOS and Linux viable gaming platforms?

The trouble with games is that there's really no lockin, and porting is not that difficult, so if the publishers see MacOS and/or Linux becoming larger platforms, they'll put out more stuff for them (this is already happening, especially with indies and Valve), and few will stay on Windows because they really need game X from 1995 to keep working.

Microsoft's real strength is the enterprise, where people do need terrible internal app from 1995 that no-one has modified since then to keep working. You can't do that on Linux or MacOS easily; both are pretty happy to break binary compatibility when it suits.