The only decent blood gore I’ve seen were when getting damaged in Gears 3 (not sure about previous Gears). If you took cover against wall or waist cover and slid along them, blood would drip down the walls.
And in Gears 4 when they introduced making your whole character model, bloodied from chainsaw or Gnasher gibs. That looked kinda satisfying.
Or sometimes when playing King of the Gnasher and a lot people gib each other in one space… like a ring. Then when you look at the floor, there either gonna be bloody mess or they would have disappeared already. Lack of blood pool.
Otherwise, the blood has been underwhelming across all Gears game. It would have been better if they splattered on the walls or floor. Or that might be over the top.
Killing Floor has an excellent example of how to do blood physics. They just lie around after killing horde of enemies. But in Gears, they disappear after short while.