The Java version is the very first version of Minecraft. – Piglins, zoglins, and hoglins could not find a way to the player if they decided to kill him or her. If you gave an ingot to a baby piglin and then killed it, then you got as much as 2 pieces. – It was possible to duplicate gold ingots. Now all this is fixed, and, of course, it is the reason to download Minecraft 1.16.5/1.17.1/1.18.1 to your PC.
Among the problems, there were the item duplication and the “dullness” of mobs in relation to the player’s character.
The fixes are predictably related to the main new mobs from the major 1.17.1 release.