Steam will be getting an option of login by QR code
A QR code login to use the Stream is in the works, and there is a screenshot of the login screen. QR code access will be available on both Steam Desktop Client and Steam Deck. The real question is when Valve will announce when Steam Deck will ship in December when we expect SteamOS for desktops to hit the market at the same time.
Source: techstory.in