If a game is a huge system seller, it will stay Xbox (and pc) exclusive forever or at least several years.
Everything else, release on every platform and make as much money as possible.
They will stay in the console business. The rumor is that the next Xbox will be able to sideload Steam. If true, it will probably sell very well. The console is just a gateway to gamepass sales. Long term, there is MUCH, MUCH more money in a subscription service like gamepass than selling hardware. So, if it sideloads Steam or whatever, MS doesn’t care. They just want you to buy it so you’ll hopefully sub to gamepass.
I am fine with this. I own all consoles, but prefer Xbox. I get a lot of use out of gamepass, and I don’t care if MS is dropping the exclusives strategy. I actually prefer gamepass with a whole library games ready to go over the once a year first party exclusive, which may or may not be worth the wait. And, I can get most big “exclusives” on Steam nowadays anyway.
MS have bought Activision/Blizzard and Bethesda. There are rumors they are looking into buying Netherrealms and WB Games. Their strategy is to make gamepass so robust and full of great ip that the value is just insane…call of duty, diablo, elder scrolls, fallout, halo, gears of war, and maybe Batman and mk all as part of a sub? With new game day 1 releases?
This is their strategy, I’m not sure the market will embrace it as quickly as they would like, but I’m fine with it. You can routinely get gamepass keys for 40% off, so I’ve been enjoying a slew of games for dirt cheap prices.