Ubisoft previously guaranteed that Assassin's Creed Mirage would work on the Steam Deck, but as of tomorrow, the game will automatically detect that it is running on the Linux-powered gaming handheld and apply recommended graphics settings. https://www.notebookcheck.net/Assassin-s-Creed-Mirage-update-adds-built-in-Steam-Deck-support-with-automatic-optimisation.910077.0.html
Disclaimer: I don't own a Steam Deck
Having studios at least recognize that folks are wanting to play "PC" games on platforms other than Windows and offering 'support' for it is a good thing.
Many of us long for a time where the games we love to play need not be tied to a MS operating system.
No research done, good title though.
Smooth 60? It's pulling close to 60 at high settings. A simple youtube search could have sourced a better article