It certainly isn’t. It is more a way of discovery on how to implement something, with the benefit of being able to safely (and thus easily) change it later.
The 99 Bottles book by Sandi Metz [0] is a good short display of how it works and where it helps actually building maintainable software
The 99 Bottles book by Sandi Metz [0] is a good short display of how it works and where it helps actually building maintainable software
[0] https://sandimetz.com/99bottles