Telegram has added many features simultaneously to the platform for the convenience of its users. These include QR code scanners, message reactions, emoji etc. These will improve the user experience.
Uniqode reports that QR Code trust hinges on consistency; reliability shapes user confidence more than security messaging.
A QR Code scan is like a raised hand in a crowded room. It's voluntary, visible, and tells you exactly who's interested. Compare that to website cookies, which are more like secretly following someone ...