My bet is that there’s an Xbox handheld in the work and Microsoft is working on a Windows version just for it.
But then they would show the general public that Linux is a thing worth mentioning. I doubt that many people outside IT know about CBL Mariner.
i think they are already mentioning it: MS has a help webpage on how to install linux, both WSL2 on Windows machine, or how to burn iso and install linux on bare metal. https://learn.microsoft.com/en-us/linux/install