TL;DR: Flawed non-UBI experiment was inconclusive.
Well, hold on, from that link,
"The Finnish experiment was about partial basic income targeting able-bodied people without work, it was not about universal basic income."
And further down,
"However, the Finnish government introduced a new activation policy into the Finnish unemployment system at the beginning of 2018 – that is, during the second year of the experiment – which contaminated the control group."
And,
"It is also important to note that labour markets did not pick up before early 2018. That means there could be more visible effects in 2018, but if that is the case, we cannot really know if that was related to basic income."
Finally,
"Firstly, the experiment did not include a baseline survey. We do not know if people’s subjective assessments changed after they started to receive basic income."
Basically they didn't even do a UBI experiment, their control was messed up, they didn't compare before/after, they had a poor survey response, etc.
Well, hold on, from that link,
"The Finnish experiment was about partial basic income targeting able-bodied people without work, it was not about universal basic income."
And further down,
"However, the Finnish government introduced a new activation policy into the Finnish unemployment system at the beginning of 2018 – that is, during the second year of the experiment – which contaminated the control group."
And,
"It is also important to note that labour markets did not pick up before early 2018. That means there could be more visible effects in 2018, but if that is the case, we cannot really know if that was related to basic income."
Finally,
"Firstly, the experiment did not include a baseline survey. We do not know if people’s subjective assessments changed after they started to receive basic income."
Basically they didn't even do a UBI experiment, their control was messed up, they didn't compare before/after, they had a poor survey response, etc.