In his writings, Marx envisioned a future in which people would be “free from labour” and focus their energies on being artists and philosophers. Communism, in his mind, was part of the process to achieve that utopia.
Not entirely sure he meant this in the way we’re talking about here. He meant forced and imposed labor. I doubt he had the imagination to foresee a world where machines would do everything now done by people.
Or I could be wrong. If he envisioned a world in which no work would be required, I’d be interested in a cite.
In any case, if such a world was considered utopian by Marx, that does not mean of itself that it would be bad. Marxism, like Nazism, had many goals that just about anybody would consider desirable.
That is indeed the attraction of Marxism for so many intellectuals. But it doesn't offer many prospects for the 99.9 percent who are not fitted to be artists and philosophers. Life without purpose is hard. Life in which one has no opportunity for achievement and distinction breeds resentment. And resentment is the glue that holds the left together.