here are some comparisons for u
https://imgsli.com/NTE2MTA
personal remarks
1080p dlss quality with nvidia sharpen looks near-native
1080p native with sharpen looks better but feels oversharpened (dlss quality offsets the oversharpening effect)
1080p dlss quality sharpen decimates the native 720p (%70 resolution scaling)
dlss does a better job at handling the "warning" text
thin barbed wires are more visible with dlss (to the right of the screen)
dlss quality sharpened textures look better than native 1080p textures, but native 1080p textures look better than dlss quality without any sharpening involved
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the reason i included no-sharpen native in these comparisons is because game has built-in sharpening filter for non-dlss situations. but when dlss is activated, this sharpening filter is removed, and dlss implementation in this game lacks sharpening. in other words, native resolution is actually sharpened in-game (the sharpening i added is extra, so to speak)