The sellers on AliExpress have to pay duty now. Granted, they probably declare far less than true value, but the tariffs already made prices on AliExpress increase. You just don’t notice it because it’s rolled into the sale price or added to taxes and shipping.

Most things I shop for on AE are around 20% higher than they were before the tariffs started and de minimis was removed. I suspect sellers were shipping from China to other countries and then to US so the tariffs wouldn’t be so harsh. Now that we seem to be removing the de minimis exception from other countries, that work around could end - leading to additional price increases.