It’s really the only choice for a secure and FOSS mobile device. GOS addresses most of the SIGINT associated with phone tracking.

• disabling wifi autoconnect to prevent bssid pings
• auto reboot feature
• auto disable bluetooth feature (prevent bluetooth mac leaks)
• airplane mode is never auto disabled after system upgrades … which is a requirement to prevent cell tower triangulation
• usb-c data transfer disabled if the phone is locked
• secure hardware to prevent physical attacks and evil maid
• and many many more…

https://grapheneos.org/features

you could use shelter to create a work profile with google services framework installed… then freeze the profile when not in use

Pixel GrapheneOS gangggg

Sounds like the perfect opportunity for GrapheneOS

You can’t use online maps anonymously. Even if you downloaded offline Google Maps, you cant trust Google not to upload your historical data the moment you get internet connection.

Organic Maps and Osmand+ work on Graphene without google play services and 100% offline.