It is true that Google (de facto) controls the platform and made themselves (de facto) essential to utilizing the platform by integrating their proprietary services so deeply into the OS that you need to be a behemoth of Samsungs caliber to even attempt to meaningfully re-purpose the AOSP, and this was a brilliant strategy because it has allowed Google to solidify their spot in the duopoly / oligarchy while seeming "open". But. I do believe that Google will continue to publish the AOSP source code under a permissive license and that this code will be indispensible to a European Manhattan project for tech sovereignty, should policymakers ever see the light.