Yes and No. Look at the iFixit site - how to replace the battery in the iPhone 11. So many parts are "in the way" and need to be removed before reaching the battery (and removing the adhesive stripes) ... this is not easy ! A slightly better design that would allow just to loosen some screws, then remove the battery without having to remove several parts (Taptic engine etc.) can be achieved.Except most of the other smartphone makers, iPhones already have user replaceable batteries.
If you can't use a screwdriver without hurting yourself, then you shouldn't take anything apart.
The sole problem is to get replacement parts, that not came out of a chinese trash can.
This would be a major step forward and would very likely not impact design and functionality of the phone.