Avoid anti-aliasing when employing FSR
Anti-aliasing is not affected by the sharpening setting in FidelityFX Super Resolution.
Turns into style so “should” loses meaning. There are also many ways to avoid aliasing issues. Give it a try and pick what suits you best.
Each individual is unique. Simply attempt it, if not for enjoyment, then flip it around.
No, FSR doesn't include its own anti-aliasing.