Does the game use a lower internal resolution? If I turn off AA the game looks way too blurry, I normally play with no AA (or SMAA if available) for most games as FXAA and TAA looks blurry and smudged especially while moving. As for TSR or DLSS upscaling, those makes me feel a bit nauseous after awhile.
Either way, I'll definitely will keep an eye on this and buy it when it fully releases.
(I have way too much playtime on stalker games, especially modded stalker anomaly)