Despite the developer's confirmation last month that Atomic Heart would support FSR 2.0 (https://wccftech.com/atomic-heart-final-q-fsr-2-confirmed-old-consoles-will-be-fine/), the game seems to only offer FSR 1.0, at least on the Game Pass version.
Can anyone confirm if this is the case on the Steam version as well? Is it perhaps coming with the raytracing update?