Was testing in ubunutu, Not sure if applicable in Arch. I’m not sure if this will resolve it, but its worth a try I guess.
cd ~/.config
mv BraveSoftware BraveSofware-bak
And to revert, close Brave, cd ~/.config, delete BraveSoftware folder and mv -f BraveSofware-bak BraveSoftware (this is basically reverting it)