Makima's fate in the manga is quite complex and involves a series of dramatic events. She faces powerful opponents and has her own agenda that leads to significant developments.
Sukuna does die in the manga. The way it happens is quite dramatic and ties in with many other elements of the story, adding depth and tension to the overall narrative.
Well, Makima's death in the manga is the result of a series of events and confrontations. It's not straightforward and is tied to various character interactions and plot twists.