Comment by constantcrying

Modern Iphones all contain a glue seal between the back plate and the rest of the body (See: https://www.ifixit.com/Guide/iPhone+14+Battery+Replacement/1... if you do not believe me).

Phones contain these adhesives to use less screws and to keep them water tight. Batteries are behind that glue seal.

This is an engineering necessity and not something done to make them hard to repair.