I know this is sacrilegious (especially as a professional software developer who works from home) but I actually think it's too much screen space. I have a second 4k monitor that I almost never use because it always ends up with a lot of empty wasted space, so it just stays off most of the time. It really only gets used when I have something on my main monitor full screen, but even then it rarely has more than a 1080p screens' worth of content