If you're interested in playing Dragon Ball Xenoverse 2 on the Nintendo Switch, consider purchasing the game through official channels, such as the Nintendo eShop. This way, you'll get a legitimate copy of the game, and you'll be supporting the developers.
Dragon Ball Xenoverse 2 is a popular action role-playing game developed by Dimps and published by Bandai Namco Entertainment. The game was initially released in 2016 for PlayStation 3, PlayStation 4, Xbox 360, Xbox One, and Microsoft Windows. Later, a Nintendo Switch version was released in 2017.
That being said, here's some helpful information: