The front of a bottle sells a promise. The format decides whether you get the dose. A product that is easy to swallow but requires three gummies per serving is not a one-a-day habit, and a tablet that must be taken with food is a different commitment than one you can take dry. Serving size and format travel together, so the format question is really a routine question — start there, then compare ingredients.
Retail shelves prove the point. Walgreens' men's multivitamin category stocks all four formats side by side, and Nature Made sells its men's multis as both tablets and gummies. Two products can carry a similar nutrient list and behave completely differently in your day, because a tablet, a gummy, a capsule, and a gel are not interchangeable delivery methods. It is the reverse of how most people shop, and it leads to fewer abandoned bottles.