Better Nether Addon PE 1.17+

the nether update managed to make the nether a better dimension and actually worth exploring, but believe me, it's even close to what today's addon offers. Better Nether grants the players a complete rebuild of the nether by adding new mobs and gigantic structures, alongside some pretty useful new items.

you really need to have it in your world, it's no harm to your experience, a matter of fact it'll make it better!