Book too. A perfect application of Gandalf's (Tolkien's) wisdom.
I've literally dreamed of this before. This is awesome.
Name a dumber and more dangerous combo. I'll wait.
Yes, unfortunately you need to log into Google Play to use the Play Store. But if you didn't want to do that, you can always install Aurora. I just removed Aurora though recently because I kept getting rate limited and it was basically useless for me.
My last Pixel had Calyx installed and I used it for years. I'm on Graphene with my new Pixel as of early June. While there's no firewall app for Graphene, I get prompted to allow or deny network access for every app I install and can easily revoke access on any apps that are currently installed. I feel like I have a lot more control over the app permissions. I also have the Play Store and am able to use it. Google Play is sandboxed in Graphene. I highly recommend it.