Perhaps you should start watching trek instead of commenting on it from a distance, you know, so you know what you are taking about.

The federation (in the TNG era which i would count as the most beloved and accepted by fans) is a post scarcity society, the populations indeed do have full and free access to replication technology, which also solves the waste problem you suggest since replicated goods can also be reclaimed by the devices. Make whatever you need, use it, vanish the leftovers when youre done.

So indeed people are beyond our concepts of material need and property. Individuals may also indulge in commerce if they are of the mercantile inclination, nobody cares, but any citizen can acquire any material resource required or desired in their lives regardless, and for free.