In the past, when I sold a cryptocurrency to Amazon voucher, I got a slightly better conversion rate than when I sold it to my wallet.  I never understood it, as you always had a statement that Amazon didn't actively sponsor it.

Now that there is no longer selling to vouchers in a single step, I'd assume that this "better price" has gone as well...

(In the past, when I intended to sell some of my cryptos, I sometimes collected amazon order-intentions from friends and sold to a voucher to pay the order with. I guess that'll no longer be worth it now.)