Comment by dpc_01234

It's very common mistake in SWE to generalize and extrapolate from own situation.

The way things to do things is very dependent on the project. They way one maintain, debug, test e.g. a math library vs embedded sw vs a video game vs a database vs a enterprise app vs a service in a distributed system are all just different.

Almost all advice should be qualified by "in this domain, one this type of project ...".