Does Google use Filament [1] for this AR stuff or do they have something completely different? I mean using something else would be a huge waste from my little

Does Google use Filament [1] for this AR stuff or do they have something completely different? I mean using something else would be a huge waste from my little point of view ¯\_(ツ)_/¯ [1] Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2 - https://github.com/google/filament https://github.com/google/filament