Unsweetened generally still means it. The weasel words I usually see are "no added sugar". The ingredients will then list juice concentrates, stevia, or monkfruit.
At this point my main strategy is to minimize number of ingredients (e.g., two ingredient peanut butter) because otherwise it's just too easy to miss something getting slipped in there. It's insane.
Picked up a loaf of bread on sale the other day and, because it wasn't the brand I normally get, I scanned the ingredients. Surprised to find that it contained sucralose.
It wasn't listed as "lite" or similar. Just "regular" bread. With sucralose.
Some of the shelf stable stuff is better than others WRT ingredients, and it's possible to make relatively decent selections. The cheaper stuff tends to be more awash in garbage ingredients.
OTOH, it's also not necessarily the case that the in-store bakery stuff is free of garbage ingredients, to include artificial flavors, etc.