Interesting read why to move away from Google and Apple towards Hubzilla and the like
16. Android sends periodic updates to Google servers, including device type, cell service carrier name,
crash reports, and information about apps installed on the phone.26 It also notifies Google whenever any app
is accessed on the phone (e.g. Google knows when an Android user accesses their Uber app).
This one I did not know.
From
https://digitalcontentnext.org/wp-content/uploads/2018/08/DCN-Google-Data-Collection-Paper.pdf