Brave is not saving passwords, nor is offering to add new passwords anymore like it used to last year, has lost one or more of my passwords that were previously saved (unknown as to exactly how many), it has never captured the associated email that many sites use as the username, and you can’t add new usernames/passwords/email/etc entries to the password list manually.
And unfortunately you can’t let Brave know that their browser fails to do this other than to come here to the seemingly essentially unmonitored forum and shout uselessly to the sky.