Also did a test run just now with the updated GoG version, no manual DLL file switches.
'I belive most ppl who just play the game, won't bother with such'
Tweaked settings with Ultra RT but with RT shadows disabled.
Did not change any settings other than playing around with DLSS and FSR settings, 2560x1080 Ultrawide resolution.
+ to my eyes at this res 0.45 sharpening does look better than 0 so I was using that with both DLSS and FSR options at their highest Quality mode.
All of the pics are thumbs but you can click for full image.
DLSS:
FSR:
Another example at a more visible light spot.
DLSS:
FSR:
There is another issue with FSR that can't be seen on still images, that barbed wire and small palm trees were flickering with FSR but did not happen with native or DLSS.
'This happens with no sharpening in place so its not that'
I can't see too big overall image differences while standing still/not moving the camera around but DLSS has better image stability and thats more important to me.