Privacy is not stressed enough in crypto world! Every information is made public. No real working app can be built until the privacy problem is solved!
No real working app? what are you stressing out?
Are the crypto wallets aren't real apps that has no information needed? only it shows your public key and as much as possible your private keys or seeds either for some wallets. There are coins that are mainly focused with privacy so why are you worrying about it? you worried about the blockchain that shows all transactions publicly?