To start, head to stadia.google.com. Select the Share button and then choose Add to Home Screen.
That will create a shortcut that will allow you to access the service and play games.
For $9.99 per month, you can access a number of games to play anytime. You can also purchase popular titles like Cyberpunk 2077.
Games can be played with any Bluetooth controller, with touchscreen controls, or the dedicated Stadia controller.