Like many others, I also put my Minthara playthrough on hold due to the many bugs and issues with her character and dialogue. It made me so disappointed to learn just how neglected her character is that I made an account just to throw in my two cents.
Players are WELL FED with content from the other companions, like others have already mentioned. But we get breadcrumbs because we like the one truly evil companion? The one companion who's romance has been broken since the start and never polished? It's so noticeable because it's such a stark contrast to the detailed, cohesive stories, romances, and interactions we get with everyone else.
PLUS, this issue with the bugged dark urge dialogue REALLY has me peeved. She feels like the most relevant companion to that story arc and you can't even talk to her about it!
Please Larian, just fix our Baenre babe... #JusticeForMinty