Was Leonna Barrett a "Karen"?
Black women I don't believe, are generally lumped in on what are stereotypically considered "Karens". But a Karen none-the-less, is a woman who's perceived as entitled or demanding beyond the scope of what is appropriate or necessary. She'll often use her privilege to demand her own way at the expense of others.
https://villains.fandom.com/wiki/Leonna_Barrett
https://en.wikipedia.org/wiki/Karen_(pejorative)
https://moviechat.org/tt0097722/Lean-on-Me/58c74fda6b51e905f6766a8c/Nagging-Mother