Full Controller Support for Steam Deck (And Desktop)

Controller support is good (but not great) thanks to HUMANKIND's Steam Deck support.

Please can we have full controller support?

I have pain in my index and middle fingers from right clicking mouse. This is pretty extreme in HUMANKIND vs. other 4Xs like Civ VI/V and I am purposefully taking a break from HUMANKIND to heal my fingers.

But I wouldn't need this if full controller support is added.