What would sandboxing an app like Google Maps look like? There are definitely situations where a sub-par map app would be detrimental. Obviously it's going to send data to Google, but do I have to sign into an account or will it have some other way of identifying my phone if I used a one-off account just for it?
It doesn't need to be logged on to a Google account, and it supports locally storing map data and generating routes, so you could turn on network access, download local maps, block network access, then use it for navigation without it calling home.
There's also value in live traffic and road closure information.