No, not a framework. The fundamental idea of a framework is that it's reusable, and there are inherent compromises and complexities which are a direct result of making reusability a goal.

I've adoped lots of code, some good and some terrible. Framework-based code is only easier to understand if I already know the framework and sometimes not even then if the original developers mostly had to fight their framework.

The "app architecture" does not become obsolete because nothing has come along to replace it and it was already simple enough that Stack Overflow was never a necessary part of development.

K.I.S.S. Not just glam metal.