Running any game through Infinity’s launcher will run the game through Steam if it’s a Steam game, and Steam will run in desktop mode. But I’m using the Steam Controller, which requires games to be running in Big Picture mode to enable game-specific button maps. Changing Steam’s mode to Big Picture won’t change the way games are launched, though.
Is there a way to make Steam run in Big Picture when launching games through Infinity?
Tested with Hyperdimension Neptunia VII (pirated) and Divinity: Original Sin Enhanced Edition (legal).