Does a gummy/capsule of vitamin C do the same thing as consuming a kiwi? Yes and no.
Gummies, in general, I don’t really “get”. Like, I understand the concept of wanting to appeal to people who don’t like taking pills, but I find they tend to be low dose and sometimes sugar-sweetened, both can make getting a decent dose of a supplement problematic.
ACV caps “shouldn’t” be an issue if it’s a decent brand, but again, you’re likely not getting micronutrients present in the whole food (even if you get caps with the mother). From some quick Google-Fu, many brands also have random “stuff” thrown in in addition to ACV, so you’re not just getting what you’re after.
Long story short (too late), it doesn’t get much more simple or cost effective than throwing back a tablespoon of ACV liquid, mixing it in a shot of water, or putting it on some veggies. Gummies/caps are second-tier alternatives.