This pack currently removes: Villages, Pillager outposts, Woodland mansions, Ocean Monuments, Ship Wrecks, Ruined portals, and ocean ruins.
What it doesn't remove: Witch huts, Jungle and Desert temples, and igloos. When was the last time you saw an igloo anyways?
Everything underground, nether, end is all as it should be.
Use this addon to cleanse your sandbox world of ugly structures you didn't create (Have you seen a woodland mansion? Those things always look pasted in)
Add more challenge to your game like the good old days no more finding diamonds off spawn from a shipwreck or trading sticks to a villager for emeralds.
Data Pack was tested for 1.20.1 might work on other versions.