Care to share a link?
Up to this point everything about the Fairphone 3 was mere speculation, or I missed something (which is possible) … anyway, here’s a topic for this …
You can always enhance the protection …
That’s not a feature of the phone as such, but the OS it comes with.
Sounds like you want to look into installing Fairphone Open OS (officially supported by Fairphone) or LineageOS (supported by the LineageOS community, at Android 8.1 currently), which come without Google services and Apps by default, and then choose your favourite package of Open GApps (pico is the minimum to run the Play Store) to install … or if you only need free of charge Apps, you could have a look at Yalp Store (which downloads, installs and manages free of charge Apps from the Play Store without you needing a Google account).
If you need further info about this, the search function of the forum is your friend … or the topics tagged openos or lineageos .
In any case, to avoid Google syncing your contacts, you can deactivate syncing for your Google account in the account settings.
As many of us don’t own a Fairphone 1 … what does that mean? What are you trying to achieve? Do not disturb (which can be enabled in the quick settings by swiping down from the top)?
See batteryguide just in case … but yes, the battery is one of the weak points of the Fairphone 2 in general.
However, having to charge a smartphone every day was and is not uncommon across devices. Most people do it over night.
You didn’t want to try the non-official replacements which worked for other users? …