To give you a data-driven answer, I tested the original FIFA 17 APK (from 2016) and the Ristechy Better mod on a Poco X3 Pro (Android 13).

reveals that this version is primarily a modified edition of

For those unfamiliar, APK (Android Package File) is the file format used to distribute and install applications on Android devices. OBB (Opaque Binary Blob) files, on the other hand, contain additional data that is required by some games and apps to function properly. In the case of FIFA 17, the APK file contains the game's core data, while the OBB file includes assets, graphics, and other essential game data.