Presumably there would need to be major changes to income tax brackets (especially for the lower income tiers) & dismantling of various existing welfare programs in order to fund a basic income. I think Friedman included public services like schools, public transport, health services, etc in his definition of welfare. I doubt Europeans would go this far.
Then we can discuss the more speculative parts like who will be more or less incentivized to work.
Is there something like that on the internet?