Dave Filoni significantly edited the scripts for the final Disney+ revival to better connect Ahsoka's emotional state to her eventually leading the Siege of Mandalore.
The core of this topic centers on the final scene of The Clone Wars Season 5, Episode 20, "The Wrong Jedi." After being framed for a crime she didn't commit and subsequently exonerated, Ahsoka makes the choice to leave the Jedi Order rather than rejoin it.
The development of this specific "walking away" storyline was complex:
Retailers like Hot Topic carry "Ahsoka Walks Both Worlds" t-shirts and hoodies inspired by her independent journey.