That's the expectation as of now.
Same games.
Same settings (mostly).
XSS = 1080p. XSX = 4k. (native res)
Yep, I guess that makes sense. But considering Halo Infinite doesn't appear to utilize next-gen features at launch or look particularly next-gen outside of its dynamic 4K res on Series X, we might end up in a situation where the presets are the same on both gens outside of resolution, and that would mean it looks better on One X than Series S until the raytracing patch is in.