Overwatch game director Jeff Kaplan is hoping for "more cross-platform opportunities" - Dot Esports
Blizzard Unlocks Crossplay on All Overwatch Platforms You Can Play Together
Does Overwatch 2 Support Cross Platform? - Cult of Gamer
Overwatch Fifth Anniversary AMA Reveals Info on Potential Ping System, Overwatch 2 Cross-Platform Progression, More | MMORPG.com
So apparently since Overwatch went cross platform, if you link multiple accounts to the same Battlenet account, they all get OWL tokens. And if you spend them on one platform, you still
Blizzard is Considering Overwatch Cross-Platform Play for PS4 and Xbox One
Overwatch 2 is Happening, And It Has PvE [Update: Platforms Confirmed] | USgamer