I think the difficulty of debugging just depends on the problem. If your problem is largely composing third-party libraries and services, then yes, it's extreme

I think the difficulty of debugging just depends on the problem. If your problem is largely composing third-party libraries and services, then yes, it's extremely difficult to do when disconnected. But in my experience if it's mostly code you control, and you're iterating on the design and flow of the execution, then being online is mostly just a distraction.