I stopped using it because of that for a while. I have not found another launcher that has the swipe up and down on home screen icons to open other apps, put 9 icons in the dock and a few other things I can't remember right now...
I blocked all Internet access to nova to circumvent analytics. Not sure if it's working but until I find a different launcher...
You really should ask this in
http://discuss.grapheneos.org/
https://lemmy.ml/c/grapheneos.It's a very helpful community. Someone will either explain why or point you to a FAQ. I bet it has something to do with the built in reader being insecure.
Edited... I totally gave the wrong url. Sorry. Corrected.