I've been an electrical engineer working on industrial control systems for 15 years. Before that, aviation electronics.
Must be pretty fortunate this far to have worked on panels that make sense even if you've never seen them before.
An example of one I worked on last week which I was complaining about because it's badly organised. Overloads mixed with breakers and in the same row as relays/contactors etc. I was annoyed that nothing was labelled. Still night and day compared to what you've posted, I'd have had a heart attack