While not everyone in Jujutsu Kaisen cursed energy, the strongest characters have dangerous techniques and high levels of cursed energy.

Jujutsu No Kaisen has been the talk of the town in the anime community and that is because it is a fan project to alter and, in their words, hopefully improve the ending of the Jujutsu Kaisen manga.

Jujutsu Kaisen chapter 269 had the surviving sorcerers addressing the battle with Ryomen Sukuna, with Maki Zen'in explaining there were several alternatives that could have ended the conflict sooner.