is bleach: thousand-year blood war (bleach: sennen kessen-hen) episode 3 filler?

's subordinates surround Ichigo Kurosaki, designated as a Special War Power. With Sternritter "J" Quilge Opie having effortlessly defeated Emilou Apacci, Franceska Mila Rose, and Cyan Sung-Sun, Nel Tu peers over Ichigo Kurosaki's shoulder and expresses shock at the Tres Bestias being incapacitated as Quilge comments on the unusual sight of a Shinigami with an Arrancar on his back.

Suddenly, Quilge reveals that he knows all about Ichigo due to the Daten provided by Yhwach listing him as a Special War Power whose defeat must be prioritized before his subordinates surround Ichigo.