No HDR ON on monitor, Windows or in-game. The game usually runs fine. But in some sessions (per a few days) it looks washed out and bright like it uses the wrong color profile. Restart the game in same session won’t solve it and I have to restart Windows.
I doubt if any other games I play before Overwatch in the same Windows session can cause it?
Windows has several modes that adjust monitor coloring to “help your eyes.” Might want to look into those if it seems random.