Noita on Steam Deck with "Mouse Region" Trackpad Aiming Mode
I changed the right trackpad to "Mouse Region" mode, which maps it 1-to-1 to a region on the screen. Meaning, if you configure this region match your screen exactly, then touching the top-left of the trackpad will put the cursor at the top-left of the screen, touching the bottom-right of the trackpad will put the cursor at the bottom-right of the screen, etc. I also bound wand-firing to the Left Trigger, such that pressing it does not affect the aim of my right thumb on the trackpad.
I find this trackpad setup to be far more fitting, accurate, and enjoyable than trying to drag the standard inertial "trackball" cursor (which just doesn't work here IMO), as well as the common "twin-stick" joystick config. "Mouse Region" actually works similarly to the latter, but retains full-screen travel like a mouse, which is necessary for better control of wand-crafting, pouring, throwing, and kicking.
Finally, in the Noita menu controller options, I turned off Gamepad Auto-Detect, then made sure all my Steam Input bindings mapped to keyboard/mouse actions only. This is because Noita's Auto-Detect works poorly and causes bad input "pauses" at times.
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