No, it is really simple. You stated something was known to be the case, when it actually isn't at all. It's an assumption. I asked if you knew it as a fact because you may be a dev, but you answered with speculation. Here is your quote again:
Do you know this as fact? The answer is no, so stop pretending otherwise.
So, here's the problem. It's an impossible thing to prove because while Sony has never explicitly come out and said they don't have a policy, they've also never
(to my knowledge, having worked on products with intentions of cross-play and other devs with cross-play products) formally blocked a game from cross-play functionality either. And when you don't have an actual policy, you generally don't need to come out saying you don't have a policy. Like, prove Sony
doesn't have a policy that Kaz eats your first born if you don't sell at least a million units as a first party game. Go ahead, PROVE IT. He's never come out and said he won't. But he's also never actually done it. So obviously you can't be sure.
That's how stupid this argument is. If there was more than one example of Sony actively preventing cross-play with any other system - like the multiple examples we have with Microsoft - then maybe your
(and others) skepticism would make sense. But there isn't. We have multiple examples of Microsoft blocking it
(heavily implicating they have an almost zero tolerance policy - with rare exception - to cross-play outside the Xbox ecosystem) and we have multiple examples of Sony not giving a fuck.
And, the reason this has kept going in circles is because - despite all the already available evidence - certain posters absolutely refuse to believe that Sony doesn't care if you have cross-platform play with a Microsoft console. They demand that we find a specific insider example of a game that was only coming to XB/PS (with both multiplayer and cross-play intentions) and show definitive proof that Sony explicitly stated this is was Ok.
Even though we have at least 3 examples of multi-platform games that also came to PC, that have cross-play between PS and PC but not XB, and developers explicitly stating that the only reason it's not cross-play between all three systems is because of Microsoft. At this point in the conversation, you either have to be incredibly dense, intentionally trolling, or the biggest of Microsoft fanboy shills to continue to argue this point.