Haven't had a chance to play it yet, but I absolutely love the concept of the death mechanic in daggerheart: when a player loses their last hit point, they choose one of three options: (1) Blaze of Glory where they get one action with an automatic critical hit and then the character is dead; (2) Play it Safe where the character is stable but out of the combat, but with a scar/consequence; or (3) Roll for It, where they have something akin to a death save.
I love the player getting to choose when death fits the story and am looking at adapting this mechanic into my PF2e games.