I think when you're using a desktop OS with tiny high-res icons and fonts, then higher res beyond 1080p matters. But for video games they generally have big fon

I think when you're using a desktop OS with tiny high-res icons and fonts, then higher res beyond 1080p matters. But for video games they generally have big fonts and icons because they're made keeping in mind a lot of people will be viewing them on a TV from across the living room. In most cases a higher framerate or better bitrate would be a more improved experience than more pixels.