this time the problem is we won’t increase the output and let the workers work more efficiently and earn more money

I agree with what you're saying but I just want to contextualize this bit, because you make it seem like technological advances led to increased worker productivity and higher wages.

It didn't. It never has.

The government made it happen because people pressured the government to make it happen. Strikes, riots, and literal bloodshed twisted gilded arms to share the economic gains they were amassing for themselves.

And so the implication is that, sure, this phase of technological can increase worker productivity, letting the same number of office workers do more, work less, and earn the same amount. In principle, that is entirely possible. In practice, we arrive back where you say office workers will just be replaced.