I am currently test driving Grapheneos coming from iOS.
Some apps that I use daily require GSF including banking apps. I was also concerned about the integrity of sensitive apps (such as banking apps) while using something like Aurora Store.
As a result, I created a secondary profile and installed all 3 apps required to run the Play store. Does anyone know roughly how much data does Google get from me. I understand that while the app is sandboxed without any special permissions the data is much less. However, would be nice to know more details.