Comment by nerdix

They have already added Steam support to their Xbox PC app.

https://www.theverge.com/news/690967/microsoft-xbox-app-wind...

Its not a stretch to think that they will add Steam to the next gen Xbox. They are dead last in the console wars and have been for basically 2 generations. I don't think they will do it out of benevolence but I think they are the "throw shit against the wall and see if anything sticks" phase before just giving up and exiting the market.