I'm attempting to change my keybinds through the files (\steam\userdata\x\214490\remote\input) to add crouch to my scroll wheel for crouch clipping, but my binds don't actually change in game. No matter how many times I save it or relaunch my game my keys won't change. Anyone know how to fix this?

Sometimes, there is two input.cfg files depending if you saved your game in a different location. Get yourself the app Everything (https://www.voidtools.com), let it index your computer files, search for input.cfg and try to put it into the right cfg file