If your Play Pass expires, you will lose access to the Play Pass games and content. You will still be able to access the 5 Starter Pack games.
Renewing your subscription at a later time will restore access to the games you previously enjoyed.
Your game progress and saved data are stored locally on your device. This means that your saved data is not tied to your Play Pass or to the email account associated with it. As a result, your game progress remains intact even if your Play Pass lapses or you activate a new subscription.