I really hope this "evil maid" character goes away soon. It's not interesting when there is a huge power disparity between the MC and her opponents imo. Like, no matter what, a maid is never going to destroy a duchess - unless she's literally stabbing her with a knife or something.
All the times where the maid is like "noo, I can't accept that the duchess' life is better than mine!!" in her internal monologues... just makes her seem like an idiot. Like, maid, you already lost that fight a long time ago - you know, when you became a maid and she became a duchess. There's just no comparison and, realistically, a duchess (even an out of favor duchess!) could crush a maid by wiggling her little finger.