So what is happening is that I have had to reinstall windows, I have 24H2. My sister also has brave, and shes running 23H4 or something like that.
Now brave is not staying logged in, and before anyone says its because it’s marked to clear at exit, it’s not I have already checked all that, and I cannot find anything that is in addaurd not privacy badger that could be causing it. I have been over the settings 5 times and cannot find anything that could be causing it. Which leads me to believe that this could be a bug in brave.
Your problem is similar to a more recent post here as well, please check it out and see if any things suggested in the conversation also helps you (as @289wk was suggesting with the other article as well):