Run the following command to summon an item which only should be able to be picked up by a player with UUID [I;0,0,0,0]:
/summon minecraft:item ~ ~ ~ {Owner:[I;0,0,0,0],Item:{id:"minecraft:gold_ingot",Count:1b}}
Piglins will still successfully pick up this item regardless.
Thank you for your report!
We're tracking this issue in MC-120578, so this ticket is being resolved and linked as a duplicate.
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