Android 10 was released in early September and Google has confirmed that all phones launched after January 31, 2020 will have a new operating system. According to XDA Developers, Google will validate the use of GMS (Google Mobile Services) if the OEM has provided a generation, based on Android 10 recently.
Google Mobile Services is working
The service, developed by the Mountain View company, ensures that all developers provide updated software to their users so that Google can deliver security updates in a timely manner. However, the documents indicate that it must be made allowed before January 31st, which means the phone can be launched later that day, as well as older Android like when its software was ready before.
GMS is the repository of Google services, including Google Store and Services that reach all phones outside of China. One important thing is that the Mate 30 series, which is being launched all over the world without them, has blocked Huawei US sales.