I have a very simple solution for that: you get to choose: you are either the provider of commercial software and accept liability for your product or you have to open source it.
https://en.wikipedia.org/wiki/Android_(operating_system)
"However, most devices run on the proprietary Android version developed by Google, which ships with additional proprietary closed-source software pre-installed, most notably Google Mobile Services (GMS) which includes core apps such as Google Chrome, the digital distribution platform Google Play, and the associated Google Play Services development platform. Firebase Cloud Messaging is used for push notifications. "