In a surprise move, Sony appears to be the one that pushed for Helldivers 2 to release on Xbox. In response to a fan on Discord who praised Arrowhead for managing to bring the game to Xbox, CEO Shams Jorjani clarified the situation, saying, "It was all PlayStation. Send them your thanks! We were all in support of course."
Jorjani went on to praise the decision further, adding, "I think it's one of the coolest things they've done. They're killing it," when asked if they expected Sony to make a move like this.
It's a significant shift. While MLB: The Show was technically the first Sony-published title to appear on Xbox, that decision came from Major League Baseball, not Sony. That makes Helldivers 2 the first time Sony has proactively brought one of its own games to Xbox.
From barely acknowledging Xbox hardware to now publishing its most successful live-service title on Microsoft's platform, it's clear the walls around exclusivity are starting to crumble. Xbox themselves are embracing this shift, with Gears of War: Reloaded launching day one on both Xbox and PlayStation, a milestone that seemed impossible a few years ago.
Source