A friend and I have made a Zombified Piglin/gold farm using the Piglin's aggro mechanic. After sitting at the form for a while, I left the nether, returned to my home base, and disconnected to go eat dinner. When I came back, I reconnected, went back to the nether, to the aforementioned farm, and the Piglin were still aggroed on my character. I decided to switch to creative mode briefly and the Piglin were still aggroed on my character.