Will you please make “Bookmarks” searchable by title.
Address bar can be used to search bookmarks too. Did this setting under Preferences > Search not help?
Also, Bookmarks Manager (Ctrl+Shift+O) have search box for that functionality.
I have yet to see the Bookmarks Search text box even TAKE text into it. Just won’t. Across many versions f Brave. It is completely non-functional, AFAIK.