We recently lead the way with a shower overhaul! The old tile (from the late 70s) had started to fall apart and was cracking along the grout line. We decided to remove all of the tile and replace it with something more modern since the pink tile was certainly dating the bathroom.
When inspecting what the tile was adhered to, we noticed the original contractor had used basic drywall and hadn’t use any special coating other than what looked to be paint. S0, we decided to replace the drywall with something more moisture resistant called cement backboard. It hangs a lot like drywall but it much heavier and more water resistant. Since we were replacing the drywall behind the tile, we had great success using the claw side of a framing hammer which can be found at any home improvement store.