I have experienced great difficulties with literal spaghetti code written in delphi which one can only follow through debugging, but I have also seen large code

I have experienced great difficulties with literal spaghetti code written in delphi which one can only follow through debugging, but I have also seen large codebases written in kotlin and python where almost everything is in layers and it is obvious where to add a new feature and how to find one that doesn't work. And I was very afraid that the project would end up an entangled mess, but luckily, it had the right mixture of individual services (for scaling), monoliths and messaging mediums to not become a mess.