It does just fine.
How i know this?
Well, i have i5-6600K with GTX 1060 3GB GPU and 144Hz 1080p monitor as well (Skylake build, full specs with pics in my sig) and i can play all my games with high/ultra settings with solid 60+ FPS. Your R5 3600 and RTX 2060 has quite a bit better performance than my build has.
Oh, with RTX 2060, you can look towards 1440p gaming as well.