Brutal Doom 64 (Steam Deck) Steam Deck Uses keyboard and mouse functions for the buttons
Mouse Inputs Keyboard Inputs Gamepad Inputs
cyberdemon horn Generic Controller Set jump to y, set use to A. Layout uses LP for weapon wheel, RP can be also used for weapon wheel (yes it has already complete scheme)
Seaking177 youtube Steam Controller (2015) right touchpad for E and Tab (use and minimap), LB for radial weapon wheel toggle, LT soft pull for alt fire (super shotgun is the only one that uses this), RT for firing, start for Esc, analog stick with WASD.