A list by Prioridata has revealed the top ten apps in the world, with Facebook-affiliated apps taking up six slots.
https://www.notebookcheck.net/Statistics-show-Facebook-s-dominance-over-the-Android-app-market.240224.0.html
This does NOT include Google apps?
Other lists I have seen have 5 of the top 10 from Google and 3 from FB. Also noticed that the #1 and #2 websites now are Google.
BTW, Google Photos is climbing the list and will probably be the next for Google to be in the #10.