This is a perfect situation where my extensive library of obscure games will come in handy - No Steam Deck reports (until now) despite this game being cheap and working near perfectly on the Steam Deck.

Lucid funnily enough, only runs in three resolutions 1280x800, 1280x768, and 1280x720, the last of which also runs in Windowed. The first is 1280x800 Fullscreen, making the Steam Deck's uncommon resolution work perfectly with the games now often unused resolution.

You will need to use the Steam Keyboard to use 1-4 to select these options, or make/use a custom Control Layout that uses inputs to emulate them. From this point forward, you only need inputs to match mouse movement, left click and maybe Esc (but you can easily drag the cursor to the in game Exit button).

All mouse style inputs work out of the box, but I recommend using the trackpads or connecting a mouse. You have unlimited time to make a move, but using a real mouse woud allow you to make successive matches quicker.