HoloPengin

The default mouse+keyboard layout the controller starts in before Steam takes over. I think they call it that as a play on the phrase "lizard brain"

The controller requires some sort of drivers to get out of lizard mode and work as a general controller (with remapping and everything). This has been known as it acts identically to Steam Deck and the OG Steam Controller.

If you want to use the controller without Steam being used (which, it's worth noting, you can add non-steam games to Steam to use the controller, or adjust the default desktop profile to be a normal controller), then you should be able to use SISR (formerly GloSC and GloSI): https://github.com/Alia5/SISR

Or, on Linux, use sc-controller: https://github.com/C0rn3j/sc-controller

Day one buy when it's available in my region. My original steam controller was amazing until the wireless adapter crapped out (plus its Bluetooth mode was not great, sadly) and the A button membrane broke. I even tuned that fucking thing to play 2d platformers competently, let alone shooters with gyro aim. I missed it.

My Steam Deck has been rock solid and I've wanted something with an identical layout for my PC and docked Deck since it released. I can't wait