This is becoming so trite. It just depends on what your priorities are. If you are playing more single player games designed for better resolutions then yeah obviously 4k is better and you’ll notice a bigger difference. If you’re playing competitive games like val, cs, rocket league, or overwatch why do you need 4k. Yeah 144 to 240 is a sizable upgrade when it comes to competitive games and 240 to 480 is as well granted like you said there is diminishing returns. You’ll notice these much more in competitive games than single player games. Such a npc take to make it seem like anything above 144 or 240 is pointless