With all the things google is doing for custom os last few years ( play protect, no major updates to asop and bundling updates to closed source google libraries etc). It is not speculation it is predicting with high certainty. Google wants custom os market to die and they are doing it brick by brick. We should Open our eyes and look at the timeline and realise it is not speculation and actual reality before it will be too late. Source: i am an owner of device with custom os and i know things i have to do to fix broken apps.