This is all rather meaningless because we don’t know the demographics of those who answered: 5,101 US adults of what generations?
18 or older selected at random from across the entire country, read this for more information about how they selected those adults.
Yeah, this is even creepier than coveryourtracks from EFF.
Try Mullvad Browser or Tor Browser.
There’s an icon on the web interface, next to the star icon to save the post. It looks like a copy icon with two squares. I’m not sure how to do that on mobile, it may depend on the client you are using.