FSR 2.1 is already implemented in Farming Simulator 2022.
FSR 2.0 vs FSR 2.1

Earlier this year, AMD announced the release of their upscaling technology FidelityFX Super Resolution 2 (FSR 2). This technology allows for PC users with either AMD or Nvidia GPUs to make use of the upscaling technology that promises to deliver better performance with minimal quality loss when compared to playing games at native resolutions.

As of today, AMD says that there are 45 games that either already have support for FSR 2 or will have it soon. This has been fantastic for those on AMD (and older Nvidia GTX cards) that simply cannot make use of Nvidia DLSS.

Today, AMD announces that FSR 2 just received its first major update, turning FSR 2 to FSR 2.1. The first game to implement FSR 2.1 is Farming Simulator 2022 as part of this week's 1.7.1 patch that came out this week.

There are some rather significant improvements made to FSR in the 2.1 update, many of which focus on reducing artifacts and ghosting when FSR is used.

Change Impact
Motion vector divergence used to diminish locked pixels This should alleviate ghosting issues on geometry with motion vectors not matching underlying pixel colors.
Disocclusion logic is now able to detect disocclusions in areas with only small depth separation between objects. This should alleviate ghosting issues and improve upscaling quality on some disocclusion cases.
Improved upscaled output quality by turning some half-precision computations to full precision. This should improve overall color range and temporal stability of the upscaled image produced.
Reactive Mask updates:
  • Dilation now based on input colors to avoid expanding of reactiveness into non-relevant areas of the upscaled output.
  • The full data range [0.0, 1.0] is now used.​
 This should alleviate ghosting issues on transparent geometry such as particles.
Composition and Transparency Mask updates:
  • Dilation now based on input colors to avoid expanding of lock diminishing into non-relevant areas of the upscaled output.
 This should alleviate ghosting issues on geometry with motion vectors not matching underlying pixel colors.

In short: These changes will make the image quality look better in motion. FSR 2.1 also includes "many small bug fixes, as well as documentation fixes, and improvements."

AMD notes that developers won't have much trouble updating their games from FSR 2 to 2.1. You can see an example of the improvements in the video below as well as a comparison of framerates between FSR usage and playing at native res. The zoomed and cropped image used above should make it apparent just how much the image quality has improved with this 2.1 update. FSR 2 is on the left while FSR 2.1 is on the right.