[fnl]

Rejoice, as you have issues that are really easy to improve upon.

First of all, don’t ever argue about solutions with your peers (e.g. whitespaces), and dive deep (Can you imagine that it is hard for others to read your code? Have you tried reading your own code that you have not touched for 5-10 years? Etc.). From what I hear, you might just ask the question to yourself before you confront your coworkers. And then ask Why at least several more times for every answer.

You also are very close to understanding the core issues: It typically matters to understand the business problem and find the simplest solution, with the least effort to resolve any problems.

You might get good mileage out of studying domain driven design at this point in your path.