"We automatically collect certain data from you when you use the Game and/or the Services, including but not limited to your IP address, physical location and device information (such as device ID, device type, operating system, CPU, RAM, IP address, MAC address, network data, operating system)."
Collection of device ID, MAC address, IP address, and detailed hardware specs enables device fingerprinting and cross-service tracking, especially when combined with sharing this data with advertising measurement partners.