As they say, there's no perfect system but a continuous development is a must to maintain its safety and security. In fairness to these updates that we're getting with the hardware wallet companies, not all of them are bad at all. The obvious is there with a certain brand but still, if we're going to survey what type of wallet is the trusted one, many are still saying about hardware wallets.
I still prefer to send and receive Bitcoins through giving the address than giving and asking for an address' QR code.
3. QR Codes: honesty, QR codes are not readable by the eye, they comes with blocks like figures, there is no way to know what's written in that QR code anyway, there is no way to read it and know what kind of data is inside it.
The curious ones should just stop scanning all of the QR codes that they see. I still prefer to send and receive Bitcoins through giving the address than giving and asking for an address' QR code.