I played the demo of the game on my past AMD card and everthing was fine, now with the full game and with my new GPU, a AMD RX 570 the game looks really bad, with flashing black squares when looking in some directions. I went to the steam forum, because this one is unfortunatly dead, it seems that if you disable reflections "solves" the problem, but that imo is not ideal and I hope this game gets updated and the update gets here on GoG has well.

And no this GPU works well in many others games including many other Unity3D based games...