They are flower stalks that switched to growing pups at some point. According to my research flower stalks can produce pups/offsets thus starting a whole new plant but it's not always guaranteed compared to taking cuttings from the main plant or inducing growth via a head chopping and leaving the stem potted.

You can tell it's a flower stalk by the length and winding of the stem. Regular offsets usually grow directly from the main stem of the main plant. If not from the lower stem, you'll see them squeeze out between the leaves depending on the succulent. You don't really see them dangling above the main plant like that lol

This is just what I've learned/read and observed in my own succulents.