I thinks this is the first, if not at least one of the first crossplay AAA games.
https://playwonderlands.2k.com/news/tiny-tinas-wonderlands-crossplay-split-screen-pc-specs/
Only reason I "need" crossplay, is because my cousin insists on Xbox instead of PS
https://playwonderlands.2k.com/news/tiny-tinas-wonderlands-crossplay-split-screen-pc-specs/
Fatemakers unite! We're thrilled to confirm that when Tiny Tina's Wonderlands launches on March 25, you can band together in online multiplayer for chaotic great crossplay between PlayStation 4, PlayStation 5, Xbox One, Xbox Series X|S, and PC via the Epic Games Store!
Crossplay between the aforementioned platforms is made possible by SHiFT Matchmaking, and you'll be greeted by an opt-in window when you first boot up Tiny Tina's Wonderlands.
Only reason I "need" crossplay, is because my cousin insists on Xbox instead of PS