i have an rx 580 OC and while playing warzone the other day I played for about 2 hours or more with little to no problems. Start playing again the next day and once again I have crash issues or the graphics go haywire like certain guns or ammo boxes will emit a very bright spot in the screen and this will either go away or most commonly get worse to where my screen actually has a weird rainbow effect to it along with certain items in-game having these very bright spots/or fractals emitting from them. this may not be an amd driver problem could be a problem with the game.
I have not downloaded the newest driver 21.5.2 because this has been an ongoing problem and seems like every time I download a new driver it's awful at 1st or seems great for a run or two on warzone but it never fails one day ill hardly be able to even get a game started because of the fractal/graphical problems. Im wondering is this a case of my rx 580 getting too old or is it just warzone itself causing these problems?