FWIW I just played with a controller and it’s pretty awesome. Having six abilities mapped to buttons, and D-pad for the potion/belt stuff is super smooth, and it feels good to walk around with the analog stick. So if it also features an auto-sort, and since I kind of want to cross-play this on Switch and/or PS5, I think I may keep doing controller on PC.
Also nice, if you just start using mouse/keyboard, it transitions over to that control scheme automatically, so for lots of inventory stuff (like Hordic Cube I imagine) you can have both worlds.