I’m not sure if there is an option for the Vendor to pay customs duties vs the receiver. If you buy a product made overseas, the person bringing it into the states is responsible for duties. There’s a number of exemptions where you wouldn’t have to pay, but if you are buying expensive items or a large quantity of items, then you’re likely to have some tariffs. This isn’t necessarily a new thing either. The news is making a big deal out of it. Most vendors who sell products online already have huge warehouses fully stocked so it’s up to them to play the waiting game and import when duties are to their liking.
It is pretty much a scam when a company says we are increasing prices due to tariffs just a day after a new tariff was announced. First off, most of those tariffs end up getting delayed or never enacted, and even if they do, the company already has the product here (under the previous tariff schedule) for you. They aren’t specially having your item shipped on a boat from overseas.