Supposedly both Deathloop and Ghostwire: Tokyo were designed to be cross-gen and had PS4 and XB1 versions in development before Sony hatted 1 year timed on them. Sony apparently paid for the PS4 releases to be cancelled so that the games would be PS5 exclusive and drive PS5 sales, since they had already decided to release many of their own 2021 games like Horizon: Forbidden West as cross-gen. Presumably when Deathloop and Ghostwire Tokyo come to Xbox in 2022 they will release on both Xbox One and Xbox Series, since development of the Xbox One versions weren’t cancelled like the PS4 versions were.
Supposedly according to who?
A leaker, don’t remember which one now. Was awhile ago, like back when they were first announced.