Of course not. But DLSS/FSR is still (to my knowledge) only doing work on the final frame after all the composite operations.
Looks "stunning" is subjective. I'm talking about what goes on under the hood and the science behind it. 1440p upscaled to 4k will take away details from a full non-scaled backbuffer. That's just the facts. I can see the difference while others may not and that's OK. I'm just saying I would want the full 4k experience because it does look crisper than 1440p upscaled.
Yup 60FPS is way more smoother than 30FPS. No argument there. But for a game like this where ms from 30FPS vs. 60FPS isn't going to bog down the gameplay or input feedback, I'll take the higher resolution along with all the backbuffers being high res as well.