Just wanted to provide a counter point - I also have a 32" 4k display but find the default text size easy on the eyes without scaling. I do sit pretty close to

Just wanted to provide a counter point - I also have a 32" 4k display but find the default text size easy on the eyes without scaling. I do sit pretty close to the monitor though, about half an arms length away (elbow to fingertips). I move my head around a lot more to focus on different parts of the screen. But I like that experience. My vision isn't great - I'm near sighted with 20/200 vision. I can use the screen comfortably at the default scale with glasses, or with a small bump in text size without them. I'm using OSX, with Atom & iTerm2 mostly. So that may have different font rendering than Windows.