When will AI necessitate a Universal Basic Income?

So imo, one of the logical conclusions of AI automation is a universal basic income that fully meets people's needs (let's call that a "full UBI"). If one day, 99% of jobs as we know them were automated, at that point I think the vast majority of people would want a full UBI, which is much higher than what most countries offer today, if they have a UBI at all.

But what I'm wondering is: what is the tipping point? Clearly the current level of automation isn't sufficient to get everyone on board with UBI. But some people have predicted that 50% of jobs could be automated within 20 years: if 50% of jobs went away, would you want a full UBI? What about 70%?

I thought it'd be interesting to get people's opinions on this forum, given so many are building with AI, or otherwise have less traditional or more independent forms of employment.