There isn’t anything related to the Overwatch client in your report, but I do see some other issues:
This is the Desktop Window Manager. Sometimes this crash is related to your GPU crashing (also showing in the report), but sometimes there is another issue like hardware or third-party software.
The app that controls the DualShock controller is reporting a crash. It doesn’t say if it’s related, but it could be if you’re trying to use a controller with the desktop version of Overwatch.
This error means that your GPU is not responding fast enough to Windows, so Windows decides to shut it down/marks it unresponsive. This could be an issue with the version of your GPU driver, or Adrenaline Chill (if you’re using that).
Possible fixes:
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Update your BiOS, as mentioned in this thread: Known Technical Support Issues - #18 by Drakuloth
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Use Display Driver Uninstaller and then reinstall the latest drivers for your GPU.
Hopefully, something here can help. Let me know how it goes