I disagree, having gone from a 1080p 15" display to a 4K display has made a huge difference. Everything is very sharp (Text, Video, Images etc.). I honestly would say 1080p in 2019 is a bad choice and that 1080p is obsolete even on a 15" display.
Having said that, I myself have the UX580GE, It's a good laptop ,but the battery life could be a bit better. I've personally replaced the thermal paste on mine to liquid metal. A 100% synthetic load on the CPU and GPU (/w liquid metal) wouldn't throttle the i9 below base clock (2.9GHz). Here's a video: https://www.youtube.com/watch?v=u3IEB3OJD_Y