The product's core job differs: immune support supplements provide vitamins, minerals, botanicals, or other ingredients marketed around immune function, although immune effects are ingredient-specific and no broad supplement category can guarantee prevention, treatment, or cure of infection; the two-option assessment category, daily wellness supplements, provide broad vitamins, minerals, or other routine ingredients intended to supplement dietary intake.
The word instead makes this a use-case decision, not a ranking based on added features. A situation favors immune support supplements when the required job is to provide vitamins. A situation favors daily wellness supplements when the required job is to provide broad vitamins.