For Steam users that are having issues with Steam Guard not showing Code, you can use the suggestions listed in this post to resolve the issue.

How to use the Steam Guard mobile app Using the app is super easy. As stated above, generating a code is not automatic, so whenever you attempt to make a purchase or log in to your account, you ...

Let's be honest; if you regularly use Steam Guard, you probably use the mobile app, especially since the email alternative often leads to rummaging through your spam folder for a code.

A recent update to Steam's code includes signs of an upcoming new login method: Scanning a QR code with the Steam mobile app. That's according to a tweet by SteamDB creator Pavel Djundik.

Alternatively, you can skip using the camera and use the mobile app to bypass the Steam Guard code requirement when logging in on PC.