This is inaccurate.

Money has worth because of the value a region generates.

If you have 10 units of currency and then 10 more are printed with no more value generated you have inflation.

If you keep 10 units of currency but more value is generated you have deflation.

If you just change who has the 10 units of currency that's not inflationary or deflationary, that's redistribution of the value.

UBI is just giving workers back some of the value they have generated that has been capture by the owner class.

It's funded not through 'printing press go brrr' (deficit spending) but through actual redistribution of that value more equitably.