Supplement companies spend a lot of energy debating ingredients. They spend far less time discussing something that matters just as much: whether you'll actually keep taking it.
Powders get abandoned because they require mixing. Multi-capsule stacks get abandoned because they require remembering several pills at once. A single daily gummy removes both frictions — there's nothing to measure and nothing to swallow.
Gummies are more sensitive to heat and humidity than capsules, and they typically hold fewer total actives per serving than a larger capsule could. The tradeoff is intentional: a format people actually use beats a format people abandon in week three.
Neither format is objectively superior. The right one is whichever you'll still be taking in month three.