You can link your discord account with GGames account and get special roles in discord server.
For now this future is in beta status so these roles don't give any special permissions now.
Here is how to do that.
1. Go to User Control Panel.
2. Go to Profile tab and click on link or change discord account.
3. Enter your discord nick name with tag. Example: tommy#4421
Click submit button.
That's it you successfully linked discord account with GGames.