There is no doubt that Brave developers have done hardly anything for years. The browser does not offer the same functions as other browsers. Sync has never worked and will never work because Brave developers do not want it to work. You have to save your bookmarks regularly in an html file on your desktop otherwise when Brave crashes you will lose all your bookmarks - primitive! No sign in function - blah!
Description of the issue:
How can this issue be reproduced?
Brave Version( check