>>pjmlp+(OP)
Even Sony is releasing their games on Steam since they finally figured out that releasing their games for the PC is a more profitable venture than having them be console exclusives. Good luck convincing Microsoft of doing the opposite. Sure, they
can make their games Xbox or MS Store exclusives, but it would be an irrational decision even if their end-goal is nothing but profit, since exclusivity clearly will lose them more sales than they can earn back in not having Steam be a middleman.