I bet the Studio Display would be beautiful to game on, especially for a colorful game like that!
I don't think the M2 can comfortably drive that resolution at 60 fps though :/ As much as I love Apple Silicon, the GPU is a lot weaker than a RTX card. Especially since it lacks any of the AI features.
GFN offers day passes and works with your Steam library if you want to give it a shot. You don't have to install anything, just sign up for a day and you can play No Man's Sky in a browser window at max settings. (But I think you might need the GFN app to play at full native resolution or with proper HDR, not sure).