Few days ago, our Ministry of the Interior announced new ID cards with chips which will contain some biometric data, more specifically, your face and two fingerprints in digital format. But not only that; with them, you could access government's services online via phone or tablet, without having to use card reader.
That started a fire so now almost every comment on news article and internet forums regarding this, says that government will now track us using ID cards (because you always have it with yourself). Some people are naturally dumb and will believe everything you say to them, even things like this that doesn't make any sense.
I'm sorry for ruining the atmosphere, but incognito tab won't do anything to protect you. The only job of incognito tab is not to keep history and other site data saved on your PC.