From Pathfinder Lost Omens Cheliax, Infernal Inheritance, which isn't enabled.

Fledgling Flight

FEAT 1

Activity 1 action

Frequency once per round

You can fly through the air in short bursts. You Fly. If you don't normally have a fly Speed, you gain a fly Speed of 15 feet for this movement. If you aren't on solid ground at the end of this movement, you fall.

Pathfinder Lost Omens Cheliax, Infernal InheritanceORC