Simply can't recommend how it plays on Steam Deck right now.

I can possibly imagine some FPS gain if you tweak enough, but the graphics turn out so bad that I simply don't judge as worth it. That comes from someone that never cared to play more actual games on low settings as long as it is playable, but this game just turns out too ugly IMO.

In all honesty, if you're inclined to try to play the game with everything in the minimum plus some extra tweaks, might as well play the older version of the game. At least the old is stable and the graphics are just dated, not straight up horrible.

The game does list some additional contents and all, but I don't judge worth to play trough the game seeking this extra content under those conditions.