Yes — coarse and fine salts pack differently, so equal volumes hold very different amounts of salt
A flaky kosher salt has large, airy crystals, so a spoonful packs far less salt than the same spoon of fine table salt. Scale a recipe by volume after switching salt types and the dish can come out noticeably saltier or flatter. This is why many cooks measure salt by weight, where a gram is a gram no matter the crystal.
