So I’m talking about playing previously Windows-only games on Linux, e.g. via proton.
I don’t know about the libraries etc that are used - is it possible for Microsoft to use some legal voodoo, for example, to suddenly end it all, and make the use of their libraries illegal (if they belong to Microsoft in the first place)?
Or could there be other ways of interference?
To give a bit more context: The outcome of that lawsuit was that APIs are not copyrightable in the US.
That’s relevant here, because WINE does implement the Windows API. It would infringe Microsoft’s copyright, if the API itself was copyrightable.