on fedora 40 brave wouldn’t launch through terminal or GUI. it appears to me that for some reason brave thinks there are multiple processes using the profile.
i tried
<brave-browser --safe-mode>
i got
“The profile appears to be in use by another Brave process (5544) on another computer (dhcppc11). Brave has locked the profile so that it doesn’t get corrupted. If you are sure no other processes are using this profile, you can unlock the profile and relaunch Brave.”
so i unlocked the profile by:
<rm ~/.config/BraveSoftware/Brave-Browser/SingletonLock>
now brave launches as expected