While I believe it's fairly common knowledge that there's no competitive advantage to 4K, it's definitely true that's hardly fully representative, and if you've got a 4K capable rig there's no reason you can't play Overwatch at 1080 (for, just, all the frames) and Metro Exodus at 4K (for those gorgeous visuals). So each has its place.The "gamers" you know most not have GPUs since 1080p is very CPU-dependent. "Newish" video cards from the last several years have no problems running current titles at 2K and 4K. Your comment about no advantages of 4K leads me to believe you've never gamed at 4K.
Though I do kinda feel like the statement that "1080p is very CPU-dependent" is only true if your GPU is massively out-stripping your CPU. Like, if you're running an R5 3600 with an RX 460, you'll be able to game 60fps at 1080p low-to-medium details all day long just fine, but if you want more frames the limiting factor there is 100% not the CPU.
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Aaaand the statement that "1080p is atrocious" kinda makes me wonder if you've ever seen a half-way decent 1080p display.eSports gamers use things like the Intel i9 9900K because they can get 150+ FPS with the CPU alone. FPS isn't one of the reasons they game at 1080p, it's the only reason. The GTX 1080 can play most games just fine at 4K and exceedingly well at 2K. 1080p barely even uses current GPUs and is a very CPU-dependent resolution. 2K as the current sweet spot for general gaming. 1080p is atrocious. Do you even game on PC?