Neither. Both are oversimplifications. Even by country, tariffs are almost never blanket. But for the general public it's far too complicated so they just use sweeping inaccurate generalizations.
Take milk for example. There is a certain quantity of dairy product that can flow to Canada from the US without the application of tariffs. Milk can form a portion of that, so there's a certain volume of milk that could make up that dairy quote and is tariff free. For milk in excess of this amount, the tariff can be as high as 241%.
So is it 0% or 241%?
In actuality that US has not imported enough milk to Canada to hit that threshold, so in practice it's been 0%, but you'll still see that 241% mentioned, and it's possible, but you need to consider the agenda of whoever is publishing the piece too.
They're complicated. But the media just has to dumb it down for clicks, and politicians like to dumb it down for agenda.