You seem to be connecting UBI to the "Do not want a job now" category, but I don't think there's any reason to think covid stimulus/unemployment led to much growth in those particular numbers. See https://www.bls.gov/cps/aa2004/cpsaat35.pdf for the same numbers from 2003/2004; they're certainly higher now (~100k vs ~70k, but population increased, so more like 100k vs 80k if we equalize) but not that much higher. And at a glance the biggest increase is in 55+ - so possibly it's largely older people retiring rather than substance abuse or whatever.

I do think UBI has risks, hopefully we can encourage useful pursuits, public works, etc.