Google wants to spread the holiday cheer to Stadia Founder's Edition users. Or at least get their friends to use the game streaming service. The company is giving these gamers an extra Buddy Pass to gift three months of Stadia Pro to a friend. This account is the 4K/60fps-supported tier that includes free games like Destiny 2: The Collection and Tomb Raider: Definitive Edition. Google included one Buddy Pass when it launched the service in November, but they're giving another one as an "early surprise gift."
The Buddy Pass is accessible through the envelope icon in the top left corner of the Stadia app. You can send the code to your friend through text or email. A little checkmark will appear beside the envelope icon once you've sent it. You will also get an email with the Buddy Pass redemption code. It will come to the account connected to your Stadia account, in case you need it.