MS has indicated that they will honor contracts and some promises were made to get their acquisitions through.
But everything has either been vague or outright said will be console exclusive. Bethesda is the earliest example of this, and we’ll probably see more later.
PS mostly makes their console exclusives in house. Even Spider-Man (the prime example people point to) was always intended to be console exclusive by Marvel and is only as good as it is because of Playstation funding.