basicly piglins drop piglin heads rigt now or basicly efry mob drops a head but the new piglin head means u have a piglin mop head and a animated piglin mob head shut normal piglins drop the new piglin head\ or shut u optain them the normal way getting a piglin from the nether and and blow it up with a charged creeper i tink optaining it with a charged kreeper can be more fun and more chaleging istead of killing a lot of piglings for it