What would be the name of the society where, say, 30,000 people + technology produce enough food and goods to satisfy the needs of the rest of Earth population?

So those people will get whatever they need for life but will not be technically obligated to produce anything.

We will first switch to 4 day working week, then 3 and so on, right? We will see Universal Basic Income "experiments" [1] more often until they become a norm.

At least we are on the way to all this...

[1] https://weall.org/resource/finland-universal-basic-income-pi...