It's reasonable to assume that blacks receive more welfare, direct or indirect, per capita than whites. I doubt blacks receive more in absolute terms since there still are a lot more whites.
Which merely reflects history.
But the whole topic is a strawman. Welfare has always been about stabilization of the poorest class and maintaining a minimum standard of living within a country. It's never been a reparations-based system, or, despite what someone might say, a class warfare system. Sure, there are social justice types who might argue in favour of that, but welfare as a whole has never actually operated as such.
Hypothetically, let's say reparations were paid out to slave descendants. To collect welfare against that would be inherently racist, as you're treating blacks differently based on what they've collected. So to answer the hypothetical with "reparations -welfare collected" is disgusting.