I'm not so sure about that. Many people who write software have learned not to care about anything other than developing for the platform(s) where the users are, in the most expedient way possible. So unless there really is a mass user exodus from Windows, which I doubt will happen, we'll continue to develop for Windows.
It's not so much that nobody cares, it's mostly that nobody has real agency over their os. Replacing it with linux still involves a lot of steps that make it impossible at scale
