Think about the Matrix series. The first Matrix film was iconic, the second was decent but sort of mid, the third was absolute drek and it taints the entire franchise as a result. I can't watch The Matrix any more without knowing how they fucked up the third film and without that slightly ruining the experience. The fourth I watched but I must admit that it hasn't really left any kind of impression on me.
Resolving at any cost is way worse than leaving something hanging.
I think it's why Firefly is so well regarded: it didn't last long enough to fall to enshittification. And when they did resolve it they only had a feature film's length to do it, so they had to focus and we got Serenity, which is excellent and how they resolved the origin of the Reavers is still a great piece of storytelling.