The game works great on Steam Deck via Proton Experimental without any other tinkering. There is a window at the start to select resolutions and graphics settings which can be easily operated with the trackpads.

Trackpads ar needed to navigate the menus as well but I think the controls can be tweaked easily if you need to.

The game itself controls perfectly with the joystick.

I would catalogue this as definitely playable and I can't recommend the game enough - very fun.