Last time I tested on Steam Deck, it was basically unplayable. Yes, there are plans to support it though. I've been working on the input system through development. It's not there yet, but it will be.
I tested it myself and thought it ran great? Maybe something broke in one of the later updates, but I downloaded the linux file, ran it once through desktop mode, added it to my steam library, ran it in gaming mode, then just had to map my own controls to the corresponding keys!
