The Pokémon Company and Game Freak have announced that connectivity support for Pokémon Scarlet and Pokémon Violet will finally be coming to Pokémon HOME on May 24th, 2023. You can receive a Sprigatito, Fuecoco, and Quaxly with Hidden Abilities as Mystery Gifts in the mobile app as a bonus for linking up the games. The feature will be released as part of the Version 3.0.0 update.
Pokémon HOME enables Trainers to continue their Pokémon adventures beyond a single game system and manage their collection of Pokémon across many of their games. The Pokémon that players can take to each game are limited to the Pokémon that appear in those games. Players can view the details on which Pokémon can be taken to which games from the Help menu of the mobile device version of Pokémon HOME.