I see no mention of Speenhamland, a form UBI
It was tried a couple of hundred years ago in the UK. It was a form of rural poverty relief, but in the end caused employers to use the payment as a subsidy, which I suspect would happen with a UBI.
A better solution in my view is a Job Guarantee is a better. It puts a floor under wages, gives people a chance to have meaningful employment (whatever that may be), and alleviates the problem of employers not wanting to employ the short/long term unemployed.