Is this the most idiotic headline ever written?
Experts are not baffled. Thy are yawning with disinterest.
Magnetic north has always been in motion.
Magnetic north and the north pole are not the same thing.
The north pole moves not a lot, but for its long cycle rotation.
The north pole is not moving towards Russia. They appear to be talking about magnetic north.
The people who make mobile phones are not as dumb as the journalists at the Daily Mail and their software copes very easily with the shifts in magnetic north. Indeed, the direction of magnetic north is different when you move from one place to another by a single yard (albeit only by a tiny amount).
But GPS locates users based on their coordinates, which is to say it has nothing to do with magnetic north and everything to do with the poles and your latitude.