this is a really stupid question.

I am finishing 4 years of electrical engineering so I'm familiar with Bode plots. we've seen bode plots in many courses, including control systems, however,
never once in my student life has nayone told me how they're actually
supposed to be used or what they tell me about a system.

I can look at a magnitude plot and I know that a peak means there's a pole near that frequency, but how does this plot help me in stabilising a control system?

what does the phase plot tell me? what's the difference between two systems with identical magnitude plots but different phase plots? I know phase difference means time delay, so does this mean a control system with a phase lag at a certain frequency will respond slower than another system with less phase lag?

looking through Matlab documentation and case studies, I often see such bode plots and they are supposed to tell me the system is good, but I have no idea why...

I am finishing 4 years of electrical engineering so I'm familiar with Bode plots. we've seen bode plots in many courses, including control systems, however,

I can look at a magnitude plot and I know that a peak means there's a pole near that frequency, but how does this plot help me in stabilising a control system?

what does the phase plot tell me? what's the difference between two systems with identical magnitude plots but different phase plots? I know phase difference means time delay, so does this mean a control system with a phase lag at a certain frequency will respond slower than another system with less phase lag?

looking through Matlab documentation and case studies, I often see such bode plots and they are supposed to tell me the system is good, but I have no idea why...