of course, now that Microsoft has fully understood that the number of Windows hardware is superior to Xbox Hardware, Microsoft is returning to their DNA: software development not hardware development.
and when you restart to makes money mainly on software sales through software devs, why stopping at Xbox and Windows?
that's a reason there is a paradox that exist on steam: Microsoft makes sure their games are compatible with proton from day 1 (which was a really strange surprise for me to discover I can play day 1 halo Infinite on GNU/Linux with no effort... And when a patch broke that compatibility layer, 343 pushed a patch just for proton and GNU/Linux players).
And yet, Halo Wars 2 is still Windows store exclusive... Hates you for that Microsoft...