Yeah, this is going to turn into another malware vector, isn't it?
Discord has a feature where you can log into your account on your PC by scanning a code on your phone.
So does Binance.
Those are good things though? They’re about logging in, on purpose.
Not about attesting to Google that you have a proper smartphone as a proxy for your humanity, like this thing.
But none of those options are requirements to access the service.
So does Signal.
But Signal is secure(TM)!