Maybe its my TV (55inch 4k Samsung NU8000) but 1440p looks great with a little AA, and 4k looks great, but I need some serious AA for 1080p to look good. I sit about 5 feet away and the aliasing is horrible on a game like Borderlands 3 (1080p, no AA, performance mode) on a PS4 Pro. That game has the worst jaggies I have seen this gen.
Playing Control on PC at 1080P with 4x SSAA looks a little soft but is not bad. To be perfectly honest I can barely tell the difference between 1440p 2x SSAA and 4k no AA.
I hope PS5 game developers will start to give players options. I would buy a PS5 and play games at PS4 graphics level if it gave me 1080p/1440p and 60+ Fps on all games.
Make sure your sharpness isn’t too high either, keep it dead in the middle, or 0. I notice a lot of TV manufacturers like to have that turned all the way up out of the box.
It obviously will vary depending on the game and what solution they use for AA, but for the most part I don’t run into too many issues.
I also try to keep the 4K gaming TVs at no more or less than 50 inches in size (for smaller pixel density), and sit about 5 to 6 feet away. Only problem is now, the newer ones that come out by Sony you can’t get less than 55”, so I’m just gonna have to bite the bullet when I upgrade next year or 2021. All depends on HDMI 2.1 and VRR launching.