Thanks you very much for your thorough explanation !
So yes, i'm shopping for a new monitor. I need it as soon as possible (gotta give my current 1080p to my wife since her monitor broke). My choice is a bit limited though, since i need financing, my current only options are to buy directly from either Samsung or Lenovo. (no need more details about why).
I was eyeballing this monitor (Samsung UR59C):
https://www.samsung.com/ca/monitors/ur59c/
It has all the requirements that i want. VA panel, Curved, 32 inches, great colors, no-flickering, acceptable response time for a VA panel (read it from test/reviews), 16:9 ratio. However it doesn't have either G-sync or Freesync.
How important is G-Sync for me, considering that i will never play any game that i can't get 60fps (dipping bellow 55ish gives me nausea, literally, even in slow-paced turn-based strategy games), and the fact that i don't mind the input lag introduced by enabling V-Sync ?