Completely anecdotal: I have no facebook apps or social media on my android except for whatsapp, and I never use anything else from them. I see between 400 and 500 calls to graph.facebook.com _every day_
I am also using XPrivacy Lua (you need rooted phone) https://github.com/M66B/XPrivacyLua to give applications fake details like android id, gps coordinates, contacts etc.
For a nice addition, uninstall all google software and use microg instead.
https://github.com/M66B/NetGuard/blob/master/FAQ.md#user-con...
That same logic applies to the Play Store, as it's up to the whims of Google if they roll out your update.
Anyway, the guy is legend since its XPrivacy hit android...
I’m not sure what to explain.