pf2e.fyi
From Pathfinder Lost Omens Shining Kingdoms, which isn't enabled.

Battlefield Agility

FEAT 6
ARCHETYPEFLOURISH
Activity 1 action
Archetype Blackjacket
Prerequisites Blackjacket Dedication
Requirements You're flanked by at least two enemies.

Your enemies might think they have you surrounded, but you know just how to extricate yourself. Make a melee Strike against one of the enemies flanking you and Step, in any order.

Pathfinder Lost Omens Shining KingdomsORC