Latest Steam Client Update Enables New Big Picture Mode by Default, Adds Linux Fixes
The biggest change in the new Steam Client update is the enablement of the new Big Picture mode, the one that resembles Steam Deck‘s UI, by default. So, after this update, say goodbye to the old Big Picture mode and welcome the new and fancy one on your Steam for Linux client.
Those who don’t like the new Big Picture mode will still be able to access the old one by using the -oldbigpicture command-line option. However, Valve noted the fact that the old Big Picture mode will be removed for good in a future update.