In vanilla PD2, you explore fog-of-war style. In a maphack-assisted game, you see everything: the shortest route to the boss, every pack of Souls or Dolls waiting around a corner, and which chest is actually a superchest.
So no, don’t use a maphack in PD2. Use a good loot filter. Learn the map tiles. Die to a pack of Fanaticism Moon Lords you didn’t see coming. That’s not a bug. That’s Diablo. project diablo 2 maphack
PD2’s developers have explicitly stated that maphacks violate the mod’s terms of service. Using one can lead to a permanent account ban. That’s the hard line. In vanilla PD2, you explore fog-of-war style