Nintendo has released a trailer for Chibi-Robo, announcing that it will be added as part of an upcoming update on August 21. The game, which originally released in 2005 for the GameCube and later for the Switch, follows the story of a small robot tasked with keeping a family home in order despite its chaotic environment. A new drop is expected to occur worldwide next week, allowing NSO Expansion Pack subscribers with a Nintendo Switch 2 to access the game.
Source: https://www.nintendoworldreport.com/news/72093/chibi-robo-plugging-into-switch-2-gamecube-nso-library-next-week