I think you are right. In fact, if were a regular office worker today, a Claude subscription could possibly be the only piece of software you might need to open for days in a row to be productive. You can check messages, send messages, modify documents, create documents, do research, and so on. You could even have it check on news and forums for you (if they could be crawled that is).
I wouldn't call that productive, not even close if you are just sending AI replies, offloading all your tasks and doing nothing. This is what execs think we do, while every job has a lot of complexities that are hard to see from surface level. Belief that all work can be automatable is just a dream that execs have.