Preview Alpha成員可以免費使用Game Pass，直到這功能正式推出為止
How to Participate:
Launch the Xbox Insider Hub.
Navigate to Insider content > Xbox Game Pass.
On the Info page, select Join or Show in store.
Claim your free Xbox Game Pass subscription, and start playing games!
NOTE: If the Xbox Game Pass Preview Alpha Store page fails to load, you may
need to hard reset your console (launch the Guide, navigate to Settings, and
select Restart console).
You’ll also find a new Quest and Survey in the Xbox Insider Hub after
joining the Xbox Game Pass Alpha Preview.