I haven’t found anything definitive. I do have both an M1 Max MacBook Pro and a brand new M2 Ultra Mac Studio so I am happy to post some results with whatever title. I know it’s not 1:1 but given that an M2 Ultra is basically a “double M2 Max”, taking half the framerate of that may be a proxy for M2 notebook performance.
At any rate I believe Crossover + Rosetta is going to be too much of a bottleneck to see significant gains. I’ve noticed for example, Tropico 6, when running under Metal on my M1 Max MBP, gets a smooth 70-75 FPS playing on Ultra at 2560x1600. This is Rosetta running a macOS x86 and Metal binary however. Trying the Windows version under Crossover, it drops down to 30-35 FPS playing on Medium. So while playable, even if you added a lot more M2 horsepower, I suspect the translation layers would eat a large part of that gain.