Steps to reproduce: In 1.21.4, create a platform 43 blocks high. Drop an enderman from it and observe that it lives. Open the same setup in 1.21.5 and drop an enderman from the same height and observe that it dies.
Expected result: An enderman would take the same amount of fall damage from the same height between versions.
Actual result: The enderman seems to take more fall damage than before. (Using /data get, enderman start with 40 points of health in both versions.)
Duplicate of MC-296021.