Passwords/logins not remembering at all

@PeakMountain266,
This may be due to new macOS security implementations, requiring Brave to be explicitly allowed access to save storage in order to store and retrieve passwords/login data.

Can you both try the following and see if passwords are retained afterwards?

  1. Open Keychain Access.app
  2. Search “Brave Safe Storage”
  3. Double-click the entry found, click on Access Control tab
  4. Press the + button in the bottom-left corner, and find Brave Browser in your /Applications directory
  5. Upon seeing Brave Browser added to the list, click Save Changes and enter your password
  6. Re-launch Brave