The point of multi factor identification is to stop you losing control of your account in the event your user name and password is compromised.
So let's say you log into your Google account on a new computer or phone. To check it is you a message will be sent with a 6 digit number on it. If it's not you they won't get the message and will be blocked from logging in as they cannot proceed. If it's you you will be asked to enter the code from your message.
The find network is a passive location network meant to help locate lost devices using Bluetooth and WiFi signals it is optional so if you want to opt out you can although if you lose your device then you'll need to locate it with the MK1 eyeball.
The forum just open Chrome and type in the address.
You might find it easier if you set up your home screen how you want it.
Excuse the massive heads...if you look at the bottom row left to right is phone, a folder containing all communication apps (so email, what'sapp, teams Facebook etc), Chrome (web browser), maps, camera.
That's your quick access bar you put all the stuff you use daily there.
On top of that I have folders arranged by theme..so the car folder (on my eldests fringe) has my parking apps and fueling apps in it, also Citroën and Toyota related apps for example.
To create a folder you just drag one shortcut on top of another. Then touch the name of the folder to change it.
You can probably getaway with just the quick access bar in your case as I'd be willing to bet the things on mine will cover 90% of what you need.