Valve will replace Big Picture mode with the new Steam Deck UI
 

The upcoming Steam Deck handheld could shape more than just Valve's hardware fortunes. According to a Steam forum post from a Valve employee, the console's user interface will replace Steam's Big Picture mode, a front-end for your games that's compatible with bigger displays, TVs and controllers. A slick new UI will probably be welcomed by those who believe the almost decade-old Big Picture mode is on its last legs. In fact, the feature hasn't really been visually updated much since its launch.

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