(Video) How to Disable Steam Big Picture Mode on Controllers (Xbox, PS4, PS5)
Do you want to know how to stop your xbox or ps4, ps5 controller opening steam big picture mode when you press the ps button or the xbox guide button? This is very easy, go into big picture mode, then go to settings, then select controller options and uncheck mark the guide button focuses steam. Now when you are on the desktop version of steam and you press the ps button or the guide button steam won't launch into big picture mode.