@boilingsteam We first tested to make sure #CygnusPizzaRace worked well on it (which it did), then we've been working on getting #SmugglersOfCygnus optimized for it, as well as our 2D games.
There haven't actually been too many changes needed specifically for the Deck, it's incredibly powerful. Mostly it's been adjusting stuff to make sure it's clearly legible on that screen size.
We still thoroughly test each build for performance, though.