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.

If you want to fix Steam error accepting this trade offer 11, 15, 16, 25, 26, or 28, then try again, Re-login, Enable Steam Guard, etc.

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

Enter the Steam Guard code that you got in your email, and you should be able to log in to your Steam account. In Mar. 18, Valve Steam Deck announced that it can now support Xbox Cloud Gaming.