I am having the exact same issue as what happen here:
I’m trying to uninstall Brave but a message appears saying there is a window open. The additional issue is that the application doesn’t open. I have tried every possible way to open the Brave application but nothing happens. When I click on the shortcut (or try opening any other way) the cursor loading icon appears for a second but nothing happens. I would like to try what was suggested in the the other thread but I can’t access the settings.
Is there a way to bypass the open window prompt and uninstall?