When skeletons, zombies, creepers, piglins, and wither skeletons are blown up by a charged creeper, their mob head is not dropped.
The death message when a player is killed by a charged creeper is also "<player name> blew up".
When skeletons, zombies, creepers, piglins, and wither skeletons are blown up by a charged creeper, their mob head is not dropped.
The death message when a player is killed by a charged creeper is also "<player name> blew up".