This is strictly subjective. I am running i5-8400 + 2060 Super + 32GB 2666 at 1080. I have most visuals on high and ultra with, what I consider, inessentials dialed back. I have exceptionally smooth 28-35 fps in all but the most dense environments.
I am very aware that some individuals are very fps sensitive and although we have all been watching TV our entire lives at 60hz and now some monitors go as high as 240hz. Most content is either created at 24fps or 30fps. The faster refresh rates are simply the number of times the screen is redrawn. No advantage is had from drawing the same frame 10x per second (240hz).
Understandably, when gaming, more unique frames in less time will allow us to have a significant advantage when trying to spot the sniper hiding in the upstairs window. The conditioning we have toward higher frame rates providing a “smoother” experience effects everyone differently. Scenes with lots of motion are factually smoother but most of us won’t really notice.
It is one of those things where you cannot compare your experience with someone else. I prefer having sharpening turned off. Others say it is too blurry. Looks natural to me. I recently read where an MSFS user went to his friends house and thought his MSFS looked pixelated. His friend thought it looked perfect.
Moral here? Don’t put much stock in how some else describes their visual experience of the sim. Set it up to what looks best to you. You may find 30fps is silky smooth and the clouds look like fluffy cotton. Your friend may look over your shoulder and ask how you can play with all the stuttering pixelated clouds.