Steam Deck FAQ

Do you have questions about the Steam Deck? Because Valve has answers in a new Steam Deck FAQ that's now online. This promises: "Answers to some of the common questions we're receiving from the community, press, and Gabe's inbox." Here's a bit:
Can I run non-Steam games through Proton on Steam Deck?
Yes, you can run non-Steam games through Proton.

Will Steam on Steam Deck have an ‘Add a Game’ feature like Steam on desktop?
Yes, we'll support adding games like we do for the desktop Steam client.

Will the UI on Steam Deck replace Big Picture?
That is what we’re aiming for, though the rollout will happen in stages.