Not a dependent, but I am recipient of 529

My son married in 2020 so he is no longer a dependent.  His 529 has me as the recipient and him as the beneficiary. The money is deposited into my account, then I pay the college.  It seemed very confusing when I was doing my Turbo Tax.  It basically erased the prior year info regarding him since he is no longer a dependent. Don't I have to show this 529 qualified withdrawal since I am the recipient?  I would think the IRS would consider that as income if I didn't?