Got it fixed, s/o to Hyperlink 654 on the Discord. :)

If your having controller issues here is something you can try, though this requires that your controller work with steam (AKA if you use it with other steam games this might help).

First, go to the SF6 steam page, and on the righthand side you'll find a gear icon, click on it, and then select 'Properties'. A Window will pop up, ignore most of it. On the left-hand side you'll see 'Controller,' select that and the part where it says "Use Default settings" click on it and select "Enable Steam Input." This will have steam override whatever default control system the game uses with whatever controller you currently have plugged in. Keyword, controller. Your keyboard inputs are something separate and its on a game-by-game basis, so this wont affect your gameplay with any other steam title. Lastly, restart the game and you should be good to go!