Earlier quoted context omitted.
Have you looked at other (actual) UBI experiments people have carefully run and observed? Or are you just extrapolating from this one data point that hardly resembled UBI in the first place, never mind even remotely resembling a controlled experiment?
There isn't a single UBI experiment that remotely approximates what people mean when they talk about UBI. They are all small samples and all for limited time periods. The COVID stimulus was the closest thing we've seen on the scale required to get meaningful results.
It just sounds like you just don't know about what else has actually been done? Here's one link; you can find more if you Google: https://ssir.org/articles/entry/is_universal_basic_income_th...