I go back and forth on this. We do have, to some degree, a UBI. These are benefits the government gives out to the poor, elderly, or disabled. We don't see people rushing to be poor, old, or disabled. In this regard, it doesn't seem like an incentive.

However, I don't know how this would manifest with able-bodied, skilled people. Naturally, many would want to earn more than the UBI allowance for whatever reasons. And many would be content to live off UBI. Imagine being able to backpack around the world knowing you'd be able to afford to eat wherever you go. Perhaps people will supplement their UBI by selling their data or participating in communities like Hive.

As far as automation and AI are concerned, I think that these will take over repetitive jobs, hopefully a majority of bullshit jobs. But there are things that would still require people. For example, you'd still need a plumber to find and repair leaks, which are often in inconvenient places for machines to access. It's not unusual for a plumber to have to break concrete or open up walls, or dig and crawl under foundations.

For this reason I think the workforce might turn to the crafts where not everything is a cookie cutter job. AI and machines could help out in the field. For example, there are brick-laying machines that are great for long straight stretches (some can do corners and curved walls). But masons still need to work on custom jobs or repairs.

We don't see oil production automated even though oil companies have the capital to do it.

Vocational and craft work are arts to some extent. In my opinion those jobs that require some degree of craftsmanship would be the ones to gain. We may see that without the boring jobs, people might actually level up to create more interesting works. And with a UBI, perhaps they would only take the jobs that interest them rather than have to take a job for the money.

In reality, it's hard to say with human nature being unpredictable.