No need to go lie on the internet. You don't need to remove the glass to open the case, it's still two screws and a sealing gasket. Removing the glass is more l

No need to go lie on the internet. You don't need to remove the glass to open the case, it's still two screws and a sealing gasket. Removing the glass is more like an industrial process to replace a broken glass backing but retaining the rest of the back cover. After you remove the cover you still have to remove a few pieces of the top layer of components, as described in guides like this iPhone 13 Pro battery replacement one: https://www.ifixit.com/Guide/iPhone+13+Pro+Battery+Replacement/146608 https://www.ifixit.com/Guide/iPhone+13+Pro+Battery+Replaceme... Now, say you tried a DIY repair and you broke the glass, that'd be a different case of suckage, but that doesn't really mean that suddenly batteries aren't replaceable. There could be a discussion around ease of replacement but there is ease of manufacture and sealing properties to consider as well.