How often have you analyzed and understood someone else's code in your practice?

Analyzing and understanding someone else's code is an important part of any developer's practice. In my experience, this happens regularly because:

• When working in a team, it's often necessary to read colleagues' code to understand the current implementation.
• When using third-party libraries or open-source projects, it is essential to understand their internals for correct usage or debugging.
• Supporting and developing existing projects requires understanding someone else's code.

This kind of analysis helps to better understand the architecture, identify errors, improve the code, and enhance one's skills. I usually use step-by-step reading, a debugger, and comments to gain a deeper understanding of the logic.