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For the OG controller on Linux, it was/is possible to use third-party open source software like "sc-controller" to map the pads and rebind things the way Steam does, without needing Steam running.

I don't have any reason to believe that similar projects won't work for the new version.

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> I don't have any reason to believe that similar projects won't work for the new version.

Sc-controller theoretically works, somebody with the hardware has to test though:

https://github.com/C0rn3j/sc-controller/issues/98

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SDL2 and SDL3 have steam controller support. Also, now that SDL2-Compat is a thing (alongside sdl12-compat), this means literally every game/software that uses SDL 1-3 for controllers on Linux (and windows too) should support the steam controllers.
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Not really, just things that haven't been implemented in drivers yet.
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