Earlier quoted context omitted.
The adapter flashes a QR code on your monitor. It's not plug-n-play.
Requiring the use of an app, in order to use some kind of adapter cable? I must be getting old, feel like I've just crawled from under a rock... :-) That would also mean this cable becomes useless the moment URL encoded in the QR disappears? As for the app: even if it's total crap, if only 50% of cable-buyers proceed to install the app, that 50% is still gained as potentially spied-upon subjects. There's a new please…
The real part doesn’t need anything. Plug and go.