I, also from somewhere in another hemisphere, never heard of "salty yogurt".
(By sweet yogurt, of course people (American or not) normally don't "add sugar" on-the-fly. It is done during making the yogurts.)
Try sprinkle a dash of flu de sel over your m deserts next time and watch them pop.
Or a bit of salt on some strawberries before eating.
Fact your saliva is about 0.04% saline so any food not at that level will taste a little bland.
Here are other things you can do: Just take yogurt and mix it with water 1:1 (or try different ratios) - shake it, or use a spoon - and make sure it's cold (tastes better). Now this drink can be found (usually persian stores), and some of it might have added salt.
Then add some mashed garlic, cut cucumbers + some more things and you have TARATOR - https://www.allrecipes.com/recipe/233760/bulgarian-tarator-c... - also some people like it more watery, some not.
Then you have the greek Tzatziki, or if you like mousaka (greek, bulgarian, or any kind) you can have on the side yogurt to dress.
Best is, but I avoid it now (due to my lowcarb diet) - BANITSA (or spanakopita, or similar) with it - or pastry.
Or just have it as morning drink...
in Japan beans are a sweet dish (sugar added). Many other places they are savory (Mexico)
In South East Asia avocados are a sweat dish (avocado smoothies/ice cream) where as many other places they are used in savory dishes
people add sugar to their yogurt
We do this in France (at least, kids do and some adults), even with a (I think) decent food/cooking culture people add sugar to their yogurt.
I literally have never seen this.For my own use, sugar stats are my top criteria for rejecting yogurt.