Progress in tech never implied working less.
And not just implied: it has been a repeatedly openly made promise, from the start of the industrial age to today, repeated again and again, by scientists, journalists, technologists, futorologists, businessmen, even by sci-fi authors.
But the promise of less work, and more free time, has been there from the beggining.
In the early/mid 20th century they even had big discussions and books about what people would do with all the "leisure" time that was coming.
Practically, technological progress does not implies working less, it implies higher productivity. Which implies more wealth for "someone". Who that someone is depends on political system.
That's on you. Implied doesn't mean "caused".
>Also, what sci-fi authors and futurologists write is utterly irrelevant here. We should distinguish fantasy and reality
A useless distinction, since what sci-fi authors were saying was taken to be a foretelling of things to come, adopted as such by many voices in the wider cultural space.
And of course futurologists were people who made (or attempted to make) informed predictions and even policy suggestions of things to come, not mere "fantasy" peddlers.
>Practically, technological progress does not implies working less, it implies higher productivity
That's your concept of it. Hasn't been historically the concept people (from technologists and journalists to politicians and sociologists) had of it. And even if it matches how things went, it's hardly the only way things could have gone (or should go).
> That's on you. Implied doesn't mean "caused".
It can mean both, actually (and usually someone insinuates something, not something, so I didn't find that this meaning of imply was a fit here).