Neve Campbell values herself too much to return for another Scream
Neve Campbell didn't survive five Scream movies for this

This article discusses the plot of the Scream series.
Neve Campbell returning for 2022's Scream was a surprise. Her character Sidney Prescott survived four prior run-ins with old Ghostface, losing her boyfriend, her boyfriend’s mother, her aunt, a weird half-brother, and an entire friend group in the process. Frankly, she needs a break. But Sidney’s role in the 2022’s legacy sequel was limited at best, with the character popping in to give a critical piece of information that newcomers might need. What can we say? The movie was too busy retconning her abusive, murderous ex-boyfriend into Billy, the friendly ghost dad. Nevertheless, it was nice to see her back, giving her friends hugs and bringing much-needed warmth to the cynical series.
However, her decision not to return for Scream 6 makes all the sense in the world. She should pass if the studio and franchise don’t recognize her value. As the most successful final girl in slasher history, she doesn’t need anyone to explain this to her. She’s well aware.
Speaking to People, Campbell elaborated on her choice to sit out the next Scream, publicly decrying the offer made by producers. “I did not feel that what I was being offered equated to the value that I bring to this franchise, and have brought to this franchise, for 25 years,” she said. “And as a woman in this business, I think it’s really important for us to be valued and to fight to be valued.”