Many are facing the same issue with the Brave browser. So if you need to reinstall it after deleting all the files you can follow hot to do this...
Browser itself closing
Brave shortcut icon is not there on the second installation
You need to delete all hidden files. So here you have to follow steps and delete "Brave" files from both folders "\AppData\Local" & "\AppData\Roaming".
Background music by Longzijun (YouTube channel)
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