I've lost the use of my left hand temporarily (we hope!) due to a motorbike crash. So far, I can't grasp anything in my left hand at all. Anybody out there playing one-handed who might have some tips and or work-arounds, at least for basic play? I've heard of deaf and colourblind communities on Destiny and blind communities in gaming. Is there a one-handed community? EDIT to mention that I'm on the Xbox One X.
You could look into a CronusMax Plus or XIM 4. They allow you to use different input devices and map your controller in any which way you want including mouse and keyboard which may be easier than a controller for you. Using anything with one hand will limit you for sure but you may be able to set something up that is a bit more one handed friendly. I'm sure there are people out there that utilize these devices to help them. It still won't be easy or perfect but probably better than default.