It actually depends on the experiment.

Was it charity or welfare?
Welfare has destroyed entire regions.
Charity has helped many.

Further, the effects of UBI are global. The affects of an experiment are local.

Or, in other words, (I hope you know how money is created)
You, a person, can go to work, get a second job, or side hustle and make more money.
However, bankruptcies are not caused by not working hard enough. It is the person who is running the slowest who gets eaten.
There isn't enough money to pay for all the mortgages.

So, from an individual perspective, you can get more money.
From a large perspective there isn't enough money.
And with all the ways they have said they want to implement UBI, there will be even less money.