"Google advertising ID, Apple IDFA, and other unique device IDs. ... Game and service usage: Gaming platform. Game version. Device identifiers. Crash reports. Language options. ... Some of our mobile games have the ability to make use of your device's 'health app' (Apple HealthKit for Apple devices, Google Fit for Android devices, or its equivalent) in order to process your fitness activity in the game."
Square Enix collects advertising IDs, device identifiers, and can access health/fitness data from device health apps, which goes beyond what is typically needed for game functionality.