pf2e.fyi
From Pathfinder Lost Omens Knights of Lastwall, which isn't enabled.

Familiar Foe

FEAT 4
ARCHETYPESKILL
Archetype Lastwall Sentry
Prerequisites Lastwall Sentry Dedication; expert in Religion or Undead Lore

You regularly face off against undead and can identify many with a glance. You gain a +1 circumstance bonus on skill checks to Recall Knowledge about undead. Whenever you roll a critical failure on a check to Recall Knowledge about undead, you get a failure instead.

Pathfinder Lost Omens Knights of LastwallOGL