From Pathfinder Lost Omens Ancestry Guide, which isn't enabled.

Murkeyed Azarketi

HERITAGE

You live in murky waters and have grown accustomed to life in a low-visibility environment. You need only a successful DC 3 flat check when targeting a concealed creature and a successful DC 9 flat check when targeting a hidden creature.

Pathfinder Lost Omens Ancestry GuideOGL