is jujutsu kaisen episode 22 filler?

Yuji, Nobara, and Megumi investigate mysterious deaths connected to Megumi's former school. The mission brings them face to face with cursed objects tied to the Death Painting Wombs — half-human, half-cursed spirit hybrids created over a century ago.

Meanwhile, Mahito and Geto continue their alliance, with Geto providing strategic support for the cursed spirits' larger plans.