I assume you are asking about the "refundable" portion because the earned income rule doesn't apply to the non-refundable portion.

For 2024, you'll need to run the numbers when you know the total cost of support and the earned income.

In regards to scholarships and grants have special rules in regards to support (see §152(f)(5)).  I've seen a professional organization's article interpret it one way, but I interpret it another way, so that could be a bit tricky.