For those of you who the “OverwatchTest.exe” method works for, or who haven’t tried it yet, this is intentionally breaking driver profiles for the game. When your drivers search for a game, it searches for a known application file. By renaming the application we break the association it has for the game.
It seems like this is hit and miss, but it’s working for some. If you haven’t tried this yet, it’s worth a shot for anybody with an RTX card having this issue. Keep in mind, the work around above is intended for RTX (20x0) series cards. If you have a different card, you have a different issue most likely.
For those who are having other problems after the rename, or who are crashing straight to desktop without the Rendering Device Lost Error, you may have a separate issue on top of what we suspect is the issue currently. We’re still testing but we forwarded your reports to the devs. Please keep reporting if renaming your application file as mentioned above and launching changes the behavior for now. We’ll let you know if we make any progress.